Translate | ISO/IEC 18305:2016 Indoor Positioning Tests, Accuracy Claims, Tracking Results and Building Scenarios

Translate | ISO/IEC 18305:2016 Indoor Positioning Tests, Accuracy Claims, Tracking Results and Building Scenarios: This world-facing translation guide shows indoor-navigation vendors, technical translators, test laboratories, procurement teams, building operators and localization reviewers how to translate indoor positioning accuracy reports, real-time locating system test results and tracking claims without confusing location error, coverage, latency or scenario conditions. It begins with what a reader needs to do when translating an actual document: identify the document’s function, specify its audience, decide which measurements and permissions must remain unchanged, and flag every unsupported interpretation. The aim is a useful target-language text whose real-world consequences match the source, rather than a sentence that merely sounds fluent.

ISO/IEC 18305:2016 sets out performance metrics, test and evaluation scenarios, and ways to report and visualize results for localization and tracking systems, with a primary emphasis on indoor environments. A newer edition is under development as of November 2026; do not present a draft as the published replacement. The reference is used here to explain one carefully bounded translation problem, not to paraphrase a copyrighted specification clause by clause. A measurement is meaningful only with its test conditions. The difficult part is not translating metre or percentage; it is keeping the statistic, environment, device behavior, sampling method and uncertainty attached to the number. Technical translations should preserve explicit numbers and conditional words, but they also need to preserve the hidden connections between a claim and its evidence, between a step and its prerequisite, and between a label and the action it triggers.

Quick answer and reading route: First define the field and who will act on it. Second separate observation, possibility, requirement, warning, status and target. Third translate the claim while retaining its evidence and constraints. Finally test the wording on a realistic decision, document the reviewer’s corrections, and release only the approved version. Below are twelve connected lessons, twenty-eight original scenarios, a terminology register, reader questions and a practical four-week course. The guide complements the existing translation master rather than creating a replacement hub.

• Reader: indoor-navigation vendors, technical translators, test laboratories, procurement teams, building operators and localization reviewers
• Core task: translate indoor positioning accuracy reports, real-time locating system test results and tracking claims without confusing location error, coverage, latency or scenario conditions
• Immediate action: Preserve the named quantity, condition, status and scope before polishing prose.
• Decision check: Can the target reader act or interpret the finding exactly as the original permits?
• Limit: Illustrative results below are invented for learning and are not standard thresholds or actual product test results. This educational guide does not certify any location technology or provide navigation safety guarantees.

Contents and the logic of the guide

1. Distinguish positioning, locating and tracking
2. Keep accuracy separate from precision
3. Do not turn percentiles into guarantees
4. Preserve horizontal and vertical errors
5. Define test buildings and layouts
6. Describe infrastructure assumptions
7. Protect timing measurements
8. Separate update frequency from responsiveness
9. Report missing positions and outages
10. Maintain reference position and coordinate system
11. Separate field trial from product specification
12. Write safety-neutral performance claims
13. Worked translation decisions
14. Controlled terminology
15. Bilingual quality and governance
16. Questions readers actually ask
17. Four-week learning and review plan

What is being translated—and what is not?

A professional translator does not need to reproduce an entire standard to help a reader understand documents associated with it. A product screen, a public information page, an inspection report or a data dictionary is a different genre from a normative specification. First identify which genre is in front of you. A public explanation should be understandable without suppressing caveats; a data field must remain stable enough for systems to exchange it; and a procedure must keep the order and conditions of its actions. These are different tests of faithfulness, even when they refer to the same subject.

This guide uses purpose-written, fictional examples to teach decisions instead of claiming to quote standard clauses. The published scope is linked near the end so readers can verify the precise edition. A national adoption, legal requirement, or contractual reference may impose stricter obligations than a generic educational page can establish. When the source is incomplete, the correct next step is to ask the competent owner for clarification rather than make a plausible-sounding addition.

1. Distinguish positioning, locating and tracking

Start with a real reading problem. A warehouse system finds a tag while a phone estimates its own location. A translator who approaches this as isolated word replacement will miss the relationship between the label and the action it governs. The audience may be comparing alternatives, following instructions or interpreting an audit result. Decide which of those tasks the original author expected before making the sentence smoother. In this situation, the most useful initial question is: what would a reader believe or do differently if this phrase were translated too broadly?

Why meaning can slip. The same ordinary word is used for different measurement perspectives. The problem is not only an unfortunate synonym. The misleading wording rearranges information about what is permitted, known, measured, required or still undecided. Locate the evidence field, status control or process step that establishes the boundary. If the source lacks such a field, mark the issue as unresolved and retain the source’s uncertainty in the translation. A document that is easy to read but more confident than the evidence is not a successful educational translation.

Recommended editorial move. Explain who determines whose location and whether movement over time is involved. Write a first version that names the relevant object, the condition under which the statement holds and any important exception. Only after this semantic check should you adjust sentence length, word order and tone for the target readership. If the target language normally places a condition after the main clause, consider whether readers could miss it; proximity may matter more than preserving the source sentence structure. The aim is neither literalism nor free rewriting, but an equivalent practical decision.

How to verify it. Compare actors, devices and outputs. Prepare one deliberately misleading alternative and ask a second reader to choose between interpretations without seeing your preferred answer. Record which expression they misunderstood and what contextual information corrected it. Then verify identifiers, dates, counts, quantitative units and any status-dependent permission directly against the source record. An approved terminology table should store not only the preferred expression but also the tempting expression that was rejected and the reason.

Translate this chapter into a usable practice

Make a two-column working note for distinguish positioning, locating and tracking: on the left write the source wording and its operational meaning; on the right write what the target reader must conclude. Then test the document in the situation described above rather than in a dictionary alone. If the reader’s answer differs, determine whether the root cause is a false friend, missing precondition, ambiguous reference, imprecise statistical label or an omitted qualification. Correct only the component that creates that misunderstanding, so the rest of the document remains traceable.

2. Keep accuracy separate from precision

Start with a real reading problem. Five estimates cluster tightly but remain displaced from the true location. A translator who approaches this as isolated word replacement will miss the relationship between the label and the action it governs. The audience may be comparing alternatives, following instructions or interpreting an audit result. Decide which of those tasks the original author expected before making the sentence smoother. In this situation, the most useful initial question is: what would a reader believe or do differently if this phrase were translated too broadly?

Why meaning can slip. The translation presents repeatability as closeness to ground truth. The problem is not only an unfortunate synonym. The misleading wording rearranges information about what is permitted, known, measured, required or still undecided. Locate the evidence field, status control or process step that establishes the boundary. If the source lacks such a field, mark the issue as unresolved and retain the source’s uncertainty in the translation. A document that is easy to read but more confident than the evidence is not a successful educational translation.

Recommended editorial move. Identify the statistic reported and its reference. Write a first version that names the relevant object, the condition under which the statement holds and any important exception. Only after this semantic check should you adjust sentence length, word order and tone for the target readership. If the target language normally places a condition after the main clause, consider whether readers could miss it; proximity may matter more than preserving the source sentence structure. The aim is neither literalism nor free rewriting, but an equivalent practical decision.

How to verify it. Plot error samples before approving the description. Prepare one deliberately misleading alternative and ask a second reader to choose between interpretations without seeing your preferred answer. Record which expression they misunderstood and what contextual information corrected it. Then verify identifiers, dates, counts, quantitative units and any status-dependent permission directly against the source record. An approved terminology table should store not only the preferred expression but also the tempting expression that was rejected and the reason.

Translate this chapter into a usable practice

Make a two-column working note for keep accuracy separate from precision: on the left write the source wording and its operational meaning; on the right write what the target reader must conclude. Then test the document in the situation described above rather than in a dictionary alone. If the reader’s answer differs, determine whether the root cause is a false friend, missing precondition, ambiguous reference, imprecise statistical label or an omitted qualification. Correct only the component that creates that misunderstanding, so the rest of the document remains traceable.

3. Do not turn percentiles into guarantees

Start with a real reading problem. A report gives a 90th-percentile error over an indoor trial. A translator who approaches this as isolated word replacement will miss the relationship between the label and the action it governs. The audience may be comparing alternatives, following instructions or interpreting an audit result. Decide which of those tasks the original author expected before making the sentence smoother. In this situation, the most useful initial question is: what would a reader believe or do differently if this phrase were translated too broadly?

Why meaning can slip. Marketing rewrites it as an error bound for every reading. The problem is not only an unfortunate synonym. The misleading wording rearranges information about what is permitted, known, measured, required or still undecided. Locate the evidence field, status control or process step that establishes the boundary. If the source lacks such a field, mark the issue as unresolved and retain the source’s uncertainty in the translation. A document that is easy to read but more confident than the evidence is not a successful educational translation.

Recommended editorial move. State the population, percentile and observed evaluation conditions. Write a first version that names the relevant object, the condition under which the statement holds and any important exception. Only after this semantic check should you adjust sentence length, word order and tone for the target readership. If the target language normally places a condition after the main clause, consider whether readers could miss it; proximity may matter more than preserving the source sentence structure. The aim is neither literalism nor free rewriting, but an equivalent practical decision.

How to verify it. Reconstruct the percentile claim from the trial data. Prepare one deliberately misleading alternative and ask a second reader to choose between interpretations without seeing your preferred answer. Record which expression they misunderstood and what contextual information corrected it. Then verify identifiers, dates, counts, quantitative units and any status-dependent permission directly against the source record. An approved terminology table should store not only the preferred expression but also the tempting expression that was rejected and the reason.

Translate this chapter into a usable practice

Make a two-column working note for do not turn percentiles into guarantees: on the left write the source wording and its operational meaning; on the right write what the target reader must conclude. Then test the document in the situation described above rather than in a dictionary alone. If the reader’s answer differs, determine whether the root cause is a false friend, missing precondition, ambiguous reference, imprecise statistical label or an omitted qualification. Correct only the component that creates that misunderstanding, so the rest of the document remains traceable.

4. Preserve horizontal and vertical errors

Start with a real reading problem. An app identifies the correct corridor but the wrong floor. A translator who approaches this as isolated word replacement will miss the relationship between the label and the action it governs. The audience may be comparing alternatives, following instructions or interpreting an audit result. Decide which of those tasks the original author expected before making the sentence smoother. In this situation, the most useful initial question is: what would a reader believe or do differently if this phrase were translated too broadly?

Why meaning can slip. A single distance metric hides the vertical failure. The problem is not only an unfortunate synonym. The misleading wording rearranges information about what is permitted, known, measured, required or still undecided. Locate the evidence field, status control or process step that establishes the boundary. If the source lacks such a field, mark the issue as unresolved and retain the source’s uncertainty in the translation. A document that is easy to read but more confident than the evidence is not a successful educational translation.

Recommended editorial move. Name horizontal, vertical or floor-identification measures separately. Write a first version that names the relevant object, the condition under which the statement holds and any important exception. Only after this semantic check should you adjust sentence length, word order and tone for the target readership. If the target language normally places a condition after the main clause, consider whether readers could miss it; proximity may matter more than preserving the source sentence structure. The aim is neither literalism nor free rewriting, but an equivalent practical decision.

How to verify it. Check coordinate axes and units in the report. Prepare one deliberately misleading alternative and ask a second reader to choose between interpretations without seeing your preferred answer. Record which expression they misunderstood and what contextual information corrected it. Then verify identifiers, dates, counts, quantitative units and any status-dependent permission directly against the source record. An approved terminology table should store not only the preferred expression but also the tempting expression that was rejected and the reason.

Translate this chapter into a usable practice

Make a two-column working note for preserve horizontal and vertical errors: on the left write the source wording and its operational meaning; on the right write what the target reader must conclude. Then test the document in the situation described above rather than in a dictionary alone. If the reader’s answer differs, determine whether the root cause is a false friend, missing precondition, ambiguous reference, imprecise statistical label or an omitted qualification. Correct only the component that creates that misunderstanding, so the rest of the document remains traceable.

5. Define test buildings and layouts

Start with a real reading problem. The same system is tested in an open hall and partitioned office. A translator who approaches this as isolated word replacement will miss the relationship between the label and the action it governs. The audience may be comparing alternatives, following instructions or interpreting an audit result. Decide which of those tasks the original author expected before making the sentence smoother. In this situation, the most useful initial question is: what would a reader believe or do differently if this phrase were translated too broadly?

Why meaning can slip. A summary says the results apply to every building. The problem is not only an unfortunate synonym. The misleading wording rearranges information about what is permitted, known, measured, required or still undecided. Locate the evidence field, status control or process step that establishes the boundary. If the source lacks such a field, mark the issue as unresolved and retain the source’s uncertainty in the translation. A document that is easy to read but more confident than the evidence is not a successful educational translation.

Recommended editorial move. Retain building category, layout and relevant constraints. Write a first version that names the relevant object, the condition under which the statement holds and any important exception. Only after this semantic check should you adjust sentence length, word order and tone for the target readership. If the target language normally places a condition after the main clause, consider whether readers could miss it; proximity may matter more than preserving the source sentence structure. The aim is neither literalism nor free rewriting, but an equivalent practical decision.

How to verify it. Audit each claim against the trial inventory. Prepare one deliberately misleading alternative and ask a second reader to choose between interpretations without seeing your preferred answer. Record which expression they misunderstood and what contextual information corrected it. Then verify identifiers, dates, counts, quantitative units and any status-dependent permission directly against the source record. An approved terminology table should store not only the preferred expression but also the tempting expression that was rejected and the reason.

Translate this chapter into a usable practice

Make a two-column working note for define test buildings and layouts: on the left write the source wording and its operational meaning; on the right write what the target reader must conclude. Then test the document in the situation described above rather than in a dictionary alone. If the reader’s answer differs, determine whether the root cause is a false friend, missing precondition, ambiguous reference, imprecise statistical label or an omitted qualification. Correct only the component that creates that misunderstanding, so the rest of the document remains traceable.

6. Describe infrastructure assumptions

Start with a real reading problem. A test relies on installed beacons and an existing wireless network. A translator who approaches this as isolated word replacement will miss the relationship between the label and the action it governs. The audience may be comparing alternatives, following instructions or interpreting an audit result. Decide which of those tasks the original author expected before making the sentence smoother. In this situation, the most useful initial question is: what would a reader believe or do differently if this phrase were translated too broadly?

Why meaning can slip. The translation suggests a stand-alone product. The problem is not only an unfortunate synonym. The misleading wording rearranges information about what is permitted, known, measured, required or still undecided. Locate the evidence field, status control or process step that establishes the boundary. If the source lacks such a field, mark the issue as unresolved and retain the source’s uncertainty in the translation. A document that is easy to read but more confident than the evidence is not a successful educational translation.

Recommended editorial move. State required network, anchors and site preparation. Write a first version that names the relevant object, the condition under which the statement holds and any important exception. Only after this semantic check should you adjust sentence length, word order and tone for the target readership. If the target language normally places a condition after the main clause, consider whether readers could miss it; proximity may matter more than preserving the source sentence structure. The aim is neither literalism nor free rewriting, but an equivalent practical decision.

How to verify it. Confirm deployment map before describing portability. Prepare one deliberately misleading alternative and ask a second reader to choose between interpretations without seeing your preferred answer. Record which expression they misunderstood and what contextual information corrected it. Then verify identifiers, dates, counts, quantitative units and any status-dependent permission directly against the source record. An approved terminology table should store not only the preferred expression but also the tempting expression that was rejected and the reason.

Translate this chapter into a usable practice

Make a two-column working note for describe infrastructure assumptions: on the left write the source wording and its operational meaning; on the right write what the target reader must conclude. Then test the document in the situation described above rather than in a dictionary alone. If the reader’s answer differs, determine whether the root cause is a false friend, missing precondition, ambiguous reference, imprecise statistical label or an omitted qualification. Correct only the component that creates that misunderstanding, so the rest of the document remains traceable.

7. Protect timing measurements

Start with a real reading problem. Latency is measured from event capture to reported estimate. A translator who approaches this as isolated word replacement will miss the relationship between the label and the action it governs. The audience may be comparing alternatives, following instructions or interpreting an audit result. Decide which of those tasks the original author expected before making the sentence smoother. In this situation, the most useful initial question is: what would a reader believe or do differently if this phrase were translated too broadly?

Why meaning can slip. A translated statement drops the measurement start point. The problem is not only an unfortunate synonym. The misleading wording rearranges information about what is permitted, known, measured, required or still undecided. Locate the evidence field, status control or process step that establishes the boundary. If the source lacks such a field, mark the issue as unresolved and retain the source’s uncertainty in the translation. A document that is easy to read but more confident than the evidence is not a successful educational translation.

Recommended editorial move. State what begins and ends the timing interval. Write a first version that names the relevant object, the condition under which the statement holds and any important exception. Only after this semantic check should you adjust sentence length, word order and tone for the target readership. If the target language normally places a condition after the main clause, consider whether readers could miss it; proximity may matter more than preserving the source sentence structure. The aim is neither literalism nor free rewriting, but an equivalent practical decision.

How to verify it. Trace event timestamps in logs. Prepare one deliberately misleading alternative and ask a second reader to choose between interpretations without seeing your preferred answer. Record which expression they misunderstood and what contextual information corrected it. Then verify identifiers, dates, counts, quantitative units and any status-dependent permission directly against the source record. An approved terminology table should store not only the preferred expression but also the tempting expression that was rejected and the reason.

Translate this chapter into a usable practice

Make a two-column working note for protect timing measurements: on the left write the source wording and its operational meaning; on the right write what the target reader must conclude. Then test the document in the situation described above rather than in a dictionary alone. If the reader’s answer differs, determine whether the root cause is a false friend, missing precondition, ambiguous reference, imprecise statistical label or an omitted qualification. Correct only the component that creates that misunderstanding, so the rest of the document remains traceable.

8. Separate update frequency from responsiveness

Start with a real reading problem. A tracker publishes one point per second. A translator who approaches this as isolated word replacement will miss the relationship between the label and the action it governs. The audience may be comparing alternatives, following instructions or interpreting an audit result. Decide which of those tasks the original author expected before making the sentence smoother. In this situation, the most useful initial question is: what would a reader believe or do differently if this phrase were translated too broadly?

Why meaning can slip. A buyer infers that every position is always one second old. The problem is not only an unfortunate synonym. The misleading wording rearranges information about what is permitted, known, measured, required or still undecided. Locate the evidence field, status control or process step that establishes the boundary. If the source lacks such a field, mark the issue as unresolved and retain the source’s uncertainty in the translation. A document that is easy to read but more confident than the evidence is not a successful educational translation.

Recommended editorial move. Distinguish report rate, processing delay and stale data. Write a first version that names the relevant object, the condition under which the statement holds and any important exception. Only after this semantic check should you adjust sentence length, word order and tone for the target readership. If the target language normally places a condition after the main clause, consider whether readers could miss it; proximity may matter more than preserving the source sentence structure. The aim is neither literalism nor free rewriting, but an equivalent practical decision.

How to verify it. Test movement against recorded timestamp pairs. Prepare one deliberately misleading alternative and ask a second reader to choose between interpretations without seeing your preferred answer. Record which expression they misunderstood and what contextual information corrected it. Then verify identifiers, dates, counts, quantitative units and any status-dependent permission directly against the source record. An approved terminology table should store not only the preferred expression but also the tempting expression that was rejected and the reason.

Translate this chapter into a usable practice

Make a two-column working note for separate update frequency from responsiveness: on the left write the source wording and its operational meaning; on the right write what the target reader must conclude. Then test the document in the situation described above rather than in a dictionary alone. If the reader’s answer differs, determine whether the root cause is a false friend, missing precondition, ambiguous reference, imprecise statistical label or an omitted qualification. Correct only the component that creates that misunderstanding, so the rest of the document remains traceable.

9. Report missing positions and outages

Start with a real reading problem. A coverage map omits areas with no successful fixes. A translator who approaches this as isolated word replacement will miss the relationship between the label and the action it governs. The audience may be comparing alternatives, following instructions or interpreting an audit result. Decide which of those tasks the original author expected before making the sentence smoother. In this situation, the most useful initial question is: what would a reader believe or do differently if this phrase were translated too broadly?

Why meaning can slip. A visual caption says the covered floor is the whole building. The problem is not only an unfortunate synonym. The misleading wording rearranges information about what is permitted, known, measured, required or still undecided. Locate the evidence field, status control or process step that establishes the boundary. If the source lacks such a field, mark the issue as unresolved and retain the source’s uncertainty in the translation. A document that is easy to read but more confident than the evidence is not a successful educational translation.

Recommended editorial move. Show gaps and denominator of successful estimates. Write a first version that names the relevant object, the condition under which the statement holds and any important exception. Only after this semantic check should you adjust sentence length, word order and tone for the target readership. If the target language normally places a condition after the main clause, consider whether readers could miss it; proximity may matter more than preserving the source sentence structure. The aim is neither literalism nor free rewriting, but an equivalent practical decision.

How to verify it. Inspect both plotted and unplotted observations. Prepare one deliberately misleading alternative and ask a second reader to choose between interpretations without seeing your preferred answer. Record which expression they misunderstood and what contextual information corrected it. Then verify identifiers, dates, counts, quantitative units and any status-dependent permission directly against the source record. An approved terminology table should store not only the preferred expression but also the tempting expression that was rejected and the reason.

Translate this chapter into a usable practice

Make a two-column working note for report missing positions and outages: on the left write the source wording and its operational meaning; on the right write what the target reader must conclude. Then test the document in the situation described above rather than in a dictionary alone. If the reader’s answer differs, determine whether the root cause is a false friend, missing precondition, ambiguous reference, imprecise statistical label or an omitted qualification. Correct only the component that creates that misunderstanding, so the rest of the document remains traceable.

10. Maintain reference position and coordinate system

Start with a real reading problem. Test coordinates originate at a surveyed control point. A translator who approaches this as isolated word replacement will miss the relationship between the label and the action it governs. The audience may be comparing alternatives, following instructions or interpreting an audit result. Decide which of those tasks the original author expected before making the sentence smoother. In this situation, the most useful initial question is: what would a reader believe or do differently if this phrase were translated too broadly?

Why meaning can slip. A translated drawing silently changes axes. The problem is not only an unfortunate synonym. The misleading wording rearranges information about what is permitted, known, measured, required or still undecided. Locate the evidence field, status control or process step that establishes the boundary. If the source lacks such a field, mark the issue as unresolved and retain the source’s uncertainty in the translation. A document that is easy to read but more confident than the evidence is not a successful educational translation.

Recommended editorial move. Preserve origin, unit, local coordinate frame and measurement reference. Write a first version that names the relevant object, the condition under which the statement holds and any important exception. Only after this semantic check should you adjust sentence length, word order and tone for the target readership. If the target language normally places a condition after the main clause, consider whether readers could miss it; proximity may matter more than preserving the source sentence structure. The aim is neither literalism nor free rewriting, but an equivalent practical decision.

How to verify it. Overlay target-language drawing against control points. Prepare one deliberately misleading alternative and ask a second reader to choose between interpretations without seeing your preferred answer. Record which expression they misunderstood and what contextual information corrected it. Then verify identifiers, dates, counts, quantitative units and any status-dependent permission directly against the source record. An approved terminology table should store not only the preferred expression but also the tempting expression that was rejected and the reason.

Translate this chapter into a usable practice

Make a two-column working note for maintain reference position and coordinate system: on the left write the source wording and its operational meaning; on the right write what the target reader must conclude. Then test the document in the situation described above rather than in a dictionary alone. If the reader’s answer differs, determine whether the root cause is a false friend, missing precondition, ambiguous reference, imprecise statistical label or an omitted qualification. Correct only the component that creates that misunderstanding, so the rest of the document remains traceable.

11. Separate field trial from product specification

Start with a real reading problem. A vendor reports a strong result in a selected demonstration. A translator who approaches this as isolated word replacement will miss the relationship between the label and the action it governs. The audience may be comparing alternatives, following instructions or interpreting an audit result. Decide which of those tasks the original author expected before making the sentence smoother. In this situation, the most useful initial question is: what would a reader believe or do differently if this phrase were translated too broadly?

Why meaning can slip. A translated brochure presents it as universal product capability. The problem is not only an unfortunate synonym. The misleading wording rearranges information about what is permitted, known, measured, required or still undecided. Locate the evidence field, status control or process step that establishes the boundary. If the source lacks such a field, mark the issue as unresolved and retain the source’s uncertainty in the translation. A document that is easy to read but more confident than the evidence is not a successful educational translation.

Recommended editorial move. Tie the performance claim to tested version and configuration. Write a first version that names the relevant object, the condition under which the statement holds and any important exception. Only after this semantic check should you adjust sentence length, word order and tone for the target readership. If the target language normally places a condition after the main clause, consider whether readers could miss it; proximity may matter more than preserving the source sentence structure. The aim is neither literalism nor free rewriting, but an equivalent practical decision.

How to verify it. Compare firmware, device mounting and test protocol. Prepare one deliberately misleading alternative and ask a second reader to choose between interpretations without seeing your preferred answer. Record which expression they misunderstood and what contextual information corrected it. Then verify identifiers, dates, counts, quantitative units and any status-dependent permission directly against the source record. An approved terminology table should store not only the preferred expression but also the tempting expression that was rejected and the reason.

Translate this chapter into a usable practice

Make a two-column working note for separate field trial from product specification: on the left write the source wording and its operational meaning; on the right write what the target reader must conclude. Then test the document in the situation described above rather than in a dictionary alone. If the reader’s answer differs, determine whether the root cause is a false friend, missing precondition, ambiguous reference, imprecise statistical label or an omitted qualification. Correct only the component that creates that misunderstanding, so the rest of the document remains traceable.

12. Write safety-neutral performance claims

Start with a real reading problem. Indoor tracking is proposed for asset searches and also discussed for emergency use. A translator who approaches this as isolated word replacement will miss the relationship between the label and the action it governs. The audience may be comparing alternatives, following instructions or interpreting an audit result. Decide which of those tasks the original author expected before making the sentence smoother. In this situation, the most useful initial question is: what would a reader believe or do differently if this phrase were translated too broadly?

Why meaning can slip. A translator promises rescue-grade reliability without evidence. The problem is not only an unfortunate synonym. The misleading wording rearranges information about what is permitted, known, measured, required or still undecided. Locate the evidence field, status control or process step that establishes the boundary. If the source lacks such a field, mark the issue as unresolved and retain the source’s uncertainty in the translation. A document that is easy to read but more confident than the evidence is not a successful educational translation.

Recommended editorial move. Report tested capability without safety certification. Write a first version that names the relevant object, the condition under which the statement holds and any important exception. Only after this semantic check should you adjust sentence length, word order and tone for the target readership. If the target language normally places a condition after the main clause, consider whether readers could miss it; proximity may matter more than preserving the source sentence structure. The aim is neither literalism nor free rewriting, but an equivalent practical decision.

How to verify it. Require qualified review for any safety-critical use. Prepare one deliberately misleading alternative and ask a second reader to choose between interpretations without seeing your preferred answer. Record which expression they misunderstood and what contextual information corrected it. Then verify identifiers, dates, counts, quantitative units and any status-dependent permission directly against the source record. An approved terminology table should store not only the preferred expression but also the tempting expression that was rejected and the reason.

Translate this chapter into a usable practice

Make a two-column working note for write safety-neutral performance claims: on the left write the source wording and its operational meaning; on the right write what the target reader must conclude. Then test the document in the situation described above rather than in a dictionary alone. If the reader’s answer differs, determine whether the root cause is a false friend, missing precondition, ambiguous reference, imprecise statistical label or an omitted qualification. Correct only the component that creates that misunderstanding, so the rest of the document remains traceable.

Twenty-eight worked translation decisions

The examples below are original mini-cases. Each has a small source fragment, an attractive but unsafe interpretation, and a better meaning-preserving brief for translation into any target language. They are not quotations from an ISO publication and they are not representative measurements. Treat them as diagnostic exercises: the right answer is the one that keeps the reader’s choices and inferences within the original evidence.

Case 1. Indoor map caption

Illustrative source: “Median horizontal error: 1.8 m in Building A.” Tempting but unsafe rendering: “Always within 1.8 m.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Observed median in that specific building. Reason: Median does not bound all errors. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Median horizontal error: 1.8 m in Building A” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 2. Test summary

Illustrative source: “90th percentile error: 4 m.” Tempting but unsafe rendering: “Maximum error: 4 m.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Ninety percent of evaluated errors at or below this value under defined test conditions. Reason: Percentile is not maximum. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “90th percentile error: 4 m” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 3. Floor report

Illustrative source: “Correct floor in 93% of samples.” Tempting but unsafe rendering: “All floors detected.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Observed floor-identification success fraction. Reason: A percentage is not certainty. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Correct floor in 93% of samples” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 4. Signal note

Illustrative source: “Reference anchors were mounted on the ceiling.” Tempting but unsafe rendering: “No anchors needed.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Ceiling anchors were part of this setup. Reason: The infrastructure is a condition. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Reference anchors were mounted on the ceiling” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 5. Data sheet

Illustrative source: “Update rate: 2 Hz.” Tempting but unsafe rendering: “Two-second latency.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Two estimates per second under stated conditions. Reason: Rate and delay have different units. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Update rate: 2 Hz” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 6. Motion trial

Illustrative source: “Walking trajectory, handheld device.” Tempting but unsafe rendering: “Any carried device.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Results from handheld walking mode. Reason: Carrying mode can change performance. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Walking trajectory, handheld device” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 7. Coordinate output

Illustrative source: “Local X/Y coordinates in metres.” Tempting but unsafe rendering: “Global latitude/longitude.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Local planar coordinates, not geographic angles. Reason: Reference frame must be preserved. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Local X/Y coordinates in metres” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 8. Outage notice

Illustrative source: “No fix was available in stairwell segment.” Tempting but unsafe rendering: “Accurate fix everywhere.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Missing position estimates in that zone. Reason: Missing values are evidence. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “No fix was available in stairwell segment” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 9. Test design

Illustrative source: “Three participating buildings.” Tempting but unsafe rendering: “Three identical buildings.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: The count of different trial venues. Reason: Quantity does not establish comparability. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Three participating buildings” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 10. Power report

Illustrative source: “Battery runtime measured with tracking enabled.” Tempting but unsafe rendering: “Battery life regardless of use.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Runtime under the specified activity. Reason: Test configuration is essential. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Battery runtime measured with tracking enabled” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 11. Map marker

Illustrative source: “Estimated position at 10:42:05.” Tempting but unsafe rendering: “Current live position.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Estimate timestamped 10:42:05. Reason: Historical estimate is not live. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Estimated position at 10:42:05” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 12. Sensor description

Illustrative source: “IMU-assisted estimate.” Tempting but unsafe rendering: “GPS-based estimate.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: An inertial sensor contributed to the system. Reason: Do not substitute technology types. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “IMU-assisted estimate” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 13. Hardware record

Illustrative source: “Tag firmware version 2.4.” Tempting but unsafe rendering: “All firmware versions.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Tested release 2.4. Reason: Version bounds evidence. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Tag firmware version 2.4” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 14. Procurement criteria

Illustrative source: “Target horizontal accuracy below 3 m.” Tempting but unsafe rendering: “Achieved 3 m accuracy.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: The buyer’s desired threshold. Reason: Requirement is not a result. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Target horizontal accuracy below 3 m” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 15. Error table

Illustrative source: “Mean error calculated from 400 valid fixes.” Tempting but unsafe rendering: “Mean over every attempt.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Mean over the specified valid subset. Reason: Denominator determines interpretation. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Mean error calculated from 400 valid fixes” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 16. Latency figure

Illustrative source: “End-to-end report delay in milliseconds.” Tempting but unsafe rendering: “Position error in millimetres.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Timing measurement, not spatial distance. Reason: Similar abbreviations can confuse. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “End-to-end report delay in milliseconds” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 17. Test venue

Illustrative source: “Heavy metal shelving present.” Tempting but unsafe rendering: “Open-plan room.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: A shelving-rich warehouse condition. Reason: Environment affects signals. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Heavy metal shelving present” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 18. Network dependency

Illustrative source: “Wi-Fi infrastructure required.” Tempting but unsafe rendering: “Works offline anywhere.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: A network dependency is stated. Reason: Do not erase deployment needs. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Wi-Fi infrastructure required” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 19. Success-rate chart

Illustrative source: “83% of attempts yielded a location.” Tempting but unsafe rendering: “83% accuracy.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Availability of estimates, not spatial accuracy. Reason: Success and correctness differ. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “83% of attempts yielded a location” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 20. Position confidence

Illustrative source: “Confidence score from system algorithm.” Tempting but unsafe rendering: “Guaranteed probability of correct location.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: A model-specific indicator requiring definition. Reason: Uncalibrated score is not a probability. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Confidence score from system algorithm” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 21. Building axis

Illustrative source: “Level B2.” Tempting but unsafe rendering: “Building 2.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Basement second level. Reason: Floor codes are location identifiers. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Level B2” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 22. Trial population

Illustrative source: “Ten test participants.” Tempting but unsafe rendering: “Ten thousand users.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Small participant count remains intact. Reason: Sample size is evidence. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Ten test participants” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 23. Trajectory line

Illustrative source: “Smoothed path estimate.” Tempting but unsafe rendering: “Actual surveyed walking path.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Processed estimate, not ground truth. Reason: Algorithm output and reference differ. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Smoothed path estimate” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 24. Indoor-outdoor handover

Illustrative source: “Transition test performed at entrance.” Tempting but unsafe rendering: “Handover verified throughout city.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Specific entrance trial only. Reason: Scenario boundary matters. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Transition test performed at entrance” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 25. Accuracy headline

Illustrative source: “Best result observed in one run.” Tempting but unsafe rendering: “Typical guaranteed result.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: A best-case observation. Reason: Selection bias changes the meaning. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Best result observed in one run” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 26. Location request

Illustrative source: “Tag last seen at Loading Bay 3.” Tempting but unsafe rendering: “Tag currently at Loading Bay 3.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Historical last observation. Reason: Do not turn last-seen into certainty. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Tag last seen at Loading Bay 3” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 27. Reporting interval

Illustrative source: “Results aggregated per test scenario.” Tempting but unsafe rendering: “Each individual fix documented.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: Scenario-level summary. Reason: Aggregation level changes interpretability. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Results aggregated per test scenario” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Case 28. Safety note

Illustrative source: “Not evaluated for emergency rescue use.” Tempting but unsafe rendering: “Suitable for emergency rescue.” A bilingual reviewer should not judge these only on grammar or elegance. Ask what concrete situation the source describes and which part of the tempting rendering changes the decision. The difference may look small on a screen, but the target reader sees only the finished message, not the translator’s intentions.

Meaning to preserve: An explicit untested application. Reason: Translate the exclusion visibly. This distinction should be entered in a terminology or issue log with the document version, the intended audience, and the reviewer who has authority to confirm the interpretation. If the source itself contains ambiguity, an editorial note or author query is more defensible than an invented fact. A localized message can use natural grammar and locally intelligible syntax while preserving the operational boundary expressed here.

Apply the test: Put the unsafe and improved interpretations on separate cards, show them to two readers, and ask what they would report, do or conclude. Compare responses against “Not evaluated for emergency rescue use” and the underlying record. Where a button, metric or field is involved, test the adjacent label and help text too. Record whether the mistake would affect understanding, consent, timing, a measured result or a decision. That classification determines how urgently the translation needs correction before public release.

Controlled terminology: twenty distinctions to review

A glossary should be a set of tested concepts rather than an alphabetical collection of favorite words. For each entry record the source-language definition, intended target-language equivalent, situations where it is not appropriate, its data type or action where relevant, an example sentence and an approval owner. The following twenty entries should be distinguished before a public release in this field.

1. real-time locating system: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Distinguish positioning, locating and tracking”, especially where the same ordinary word is used for different measurement perspectives. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
2. localization: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Keep accuracy separate from precision”, especially where the translation presents repeatability as closeness to ground truth. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
3. positioning: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Do not turn percentiles into guarantees”, especially where marketing rewrites it as an error bound for every reading. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
4. locating: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Preserve horizontal and vertical errors”, especially where a single distance metric hides the vertical failure. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
5. tracking: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Define test buildings and layouts”, especially where a summary says the results apply to every building. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
6. ground truth: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Describe infrastructure assumptions”, especially where the translation suggests a stand-alone product. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
7. reference point: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Protect timing measurements”, especially where a translated statement drops the measurement start point. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
8. accuracy: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Separate update frequency from responsiveness”, especially where a buyer infers that every position is always one second old. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
9. precision: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Report missing positions and outages”, especially where a visual caption says the covered floor is the whole building. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
10. horizontal error: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Maintain reference position and coordinate system”, especially where a translated drawing silently changes axes. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
11. vertical error: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Separate field trial from product specification”, especially where a translated brochure presents it as universal product capability. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
12. floor identification: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Write safety-neutral performance claims”, especially where a translator promises rescue-grade reliability without evidence. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
13. percentile: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Distinguish positioning, locating and tracking”, especially where the same ordinary word is used for different measurement perspectives. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
14. median: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Keep accuracy separate from precision”, especially where the translation presents repeatability as closeness to ground truth. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
15. latency: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Do not turn percentiles into guarantees”, especially where marketing rewrites it as an error bound for every reading. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
16. update rate: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Preserve horizontal and vertical errors”, especially where a single distance metric hides the vertical failure. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
17. fix: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Define test buildings and layouts”, especially where a summary says the results apply to every building. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
18. coverage: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Describe infrastructure assumptions”, especially where the translation suggests a stand-alone product. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
19. trajectory: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Protect timing measurements”, especially where a translated statement drops the measurement start point. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.
20. test scenario: Define it for the particular artifact before selecting an equivalent. Test it against the distinction in “Separate update frequency from responsiveness”, especially where a buyer infers that every position is always one second old. Record whether it is a label, a measured value, a permission, an item state or an interpretive concept. A preferred translation without that role description is liable to be reused in the wrong setting.

A bilingual quality review that can be audited

Begin with an inventory of every source file and every surface on which the translation will appear: title, caption, chart axis, hover message, form field, accessibility description, email, mobile notification and downloadable attachment. Inconsistent wording across these surfaces is more damaging than an imperfect phrase in a single paragraph. Assign a document owner and an accountable technical reviewer. The translator owns language choices; the technical owner confirms claims that depend on systems, measurements or professional judgment.

Then build a claims table with five columns: source phrase, type of claim, evidence or system field, proposed target meaning and verification result. Label each claim as factual observation, definition, future target, permission, instruction, limitation or unknown. This forces the team to notice a frequent translation failure: a fluent expression that changes a future intention into a present achievement, a proposal into an approval, or a measurement into a guarantee. Test every number and classification in the table rather than trusting general proofreading.

Run a structured reverse-reading session. Give a target-language reader an extracted sentence or screen without the source. Ask for the action or inference it permits, then compare their answer with the source record. Do not treat back-translation as a substitute for user testing; it is one diagnostic method among several. For important content, repeat the test with people who have different levels of background knowledge. Keep examples fictional during training, and secure any real personal or restricted data.

Before release, compare the approved glossary with every occurrence of the term, verify links and codes, and check that translations do not break text layout or reading order. Keep a dated release note naming the source version, target locale, reviewer, outstanding questions and any limitations users need to see. After publication, monitor misunderstandings and support requests rather than assuming a completed proofreading cycle means the language is permanently correct.

Questions readers actually ask

Does ISO/IEC 18305 prescribe a universal accuracy threshold?

The first step is to define the relevant object and what evidence supports the statement. In this topic, the same ordinary word is used for different measurement perspectives. A correct translation makes that boundary visible rather than appealing to a familiar but overbroad synonym. Check how the original author uses the term in neighboring fields and whether the target audience would infer a different condition, status or outcome. If the point affects a technical judgment or an actual obligation, refer it to the responsible subject specialist.

A practical way to decide is to test the sentence as a small user task. Show the proposed text without explanation, ask the reader to identify the action or conclusion, and compare it with the source. Follow the review method in Chapter 1, which addresses “Distinguish positioning, locating and tracking”. The answer should be recorded with the decision owner so that another translator working next month does not reopen a solved ambiguity or accidentally restore the rejected wording.

What is the difference between median and 90th percentile?

The first step is to define the relevant object and what evidence supports the statement. In this topic, marketing rewrites it as an error bound for every reading. A correct translation makes that boundary visible rather than appealing to a familiar but overbroad synonym. Check how the original author uses the term in neighboring fields and whether the target audience would infer a different condition, status or outcome. If the point affects a technical judgment or an actual obligation, refer it to the responsible subject specialist.

A practical way to decide is to test the sentence as a small user task. Show the proposed text without explanation, ask the reader to identify the action or conclusion, and compare it with the source. Follow the review method in Chapter 3, which addresses “Do not turn percentiles into guarantees”. The answer should be recorded with the decision owner so that another translator working next month does not reopen a solved ambiguity or accidentally restore the rejected wording.

Why do buildings change location performance?

The first step is to define the relevant object and what evidence supports the statement. In this topic, a summary says the results apply to every building. A correct translation makes that boundary visible rather than appealing to a familiar but overbroad synonym. Check how the original author uses the term in neighboring fields and whether the target audience would infer a different condition, status or outcome. If the point affects a technical judgment or an actual obligation, refer it to the responsible subject specialist.

A practical way to decide is to test the sentence as a small user task. Show the proposed text without explanation, ask the reader to identify the action or conclusion, and compare it with the source. Follow the review method in Chapter 5, which addresses “Define test buildings and layouts”. The answer should be recorded with the decision owner so that another translator working next month does not reopen a solved ambiguity or accidentally restore the rejected wording.

Can a 2 Hz update rate be called low latency?

The first step is to define the relevant object and what evidence supports the statement. In this topic, a translated statement drops the measurement start point. A correct translation makes that boundary visible rather than appealing to a familiar but overbroad synonym. Check how the original author uses the term in neighboring fields and whether the target audience would infer a different condition, status or outcome. If the point affects a technical judgment or an actual obligation, refer it to the responsible subject specialist.

A practical way to decide is to test the sentence as a small user task. Show the proposed text without explanation, ask the reader to identify the action or conclusion, and compare it with the source. Follow the review method in Chapter 7, which addresses “Protect timing measurements”. The answer should be recorded with the decision owner so that another translator working next month does not reopen a solved ambiguity or accidentally restore the rejected wording.

Why should missing fixes appear in the translated report?

The first step is to define the relevant object and what evidence supports the statement. In this topic, a visual caption says the covered floor is the whole building. A correct translation makes that boundary visible rather than appealing to a familiar but overbroad synonym. Check how the original author uses the term in neighboring fields and whether the target audience would infer a different condition, status or outcome. If the point affects a technical judgment or an actual obligation, refer it to the responsible subject specialist.

A practical way to decide is to test the sentence as a small user task. Show the proposed text without explanation, ask the reader to identify the action or conclusion, and compare it with the source. Follow the review method in Chapter 9, which addresses “Report missing positions and outages”. The answer should be recorded with the decision owner so that another translator working next month does not reopen a solved ambiguity or accidentally restore the rejected wording.

Does an indoor coordinate map automatically match GPS coordinates?

The first step is to define the relevant object and what evidence supports the statement. In this topic, a translated brochure presents it as universal product capability. A correct translation makes that boundary visible rather than appealing to a familiar but overbroad synonym. Check how the original author uses the term in neighboring fields and whether the target audience would infer a different condition, status or outcome. If the point affects a technical judgment or an actual obligation, refer it to the responsible subject specialist.

A practical way to decide is to test the sentence as a small user task. Show the proposed text without explanation, ask the reader to identify the action or conclusion, and compare it with the source. Follow the review method in Chapter 11, which addresses “Separate field trial from product specification”. The answer should be recorded with the decision owner so that another translator working next month does not reopen a solved ambiguity or accidentally restore the rejected wording.

Can a successful demo substantiate a safety claim?

The first step is to define the relevant object and what evidence supports the statement. In this topic, the same ordinary word is used for different measurement perspectives. A correct translation makes that boundary visible rather than appealing to a familiar but overbroad synonym. Check how the original author uses the term in neighboring fields and whether the target audience would infer a different condition, status or outcome. If the point affects a technical judgment or an actual obligation, refer it to the responsible subject specialist.

A practical way to decide is to test the sentence as a small user task. Show the proposed text without explanation, ask the reader to identify the action or conclusion, and compare it with the source. Follow the review method in Chapter 1, which addresses “Distinguish positioning, locating and tracking”. The answer should be recorded with the decision owner so that another translator working next month does not reopen a solved ambiguity or accidentally restore the rejected wording.

How should the pending new edition be described?

The first step is to define the relevant object and what evidence supports the statement. In this topic, marketing rewrites it as an error bound for every reading. A correct translation makes that boundary visible rather than appealing to a familiar but overbroad synonym. Check how the original author uses the term in neighboring fields and whether the target audience would infer a different condition, status or outcome. If the point affects a technical judgment or an actual obligation, refer it to the responsible subject specialist.

A practical way to decide is to test the sentence as a small user task. Show the proposed text without explanation, ask the reader to identify the action or conclusion, and compare it with the source. Follow the review method in Chapter 3, which addresses “Do not turn percentiles into guarantees”. The answer should be recorded with the decision owner so that another translator working next month does not reopen a solved ambiguity or accidentally restore the rejected wording.

Four-week application course

Week 1: Map the original concepts

Collect a sample packet of twelve short artifacts, identify their audiences, and classify every instruction, number, status and condition. Construct a multilingual brief showing why a reader needs each field. Distinguish the source’s words from the reality that the words report. Use three examples from the worked-cases section and one new case created by your team. Keep rejected translations in the training record with explanations, because an error that has been understood is more valuable for future reviewers than a silent correction.

Week 2: Draft controlled translations

Translate the packet into a target language, create a twenty-entry terminology register, and perform deliberate contrast tests between similar labels. A partner should identify which terms refer to decisions, which to evidence and which to interface actions. Use three examples from the worked-cases section and one new case created by your team. Keep rejected translations in the training record with explanations, because an error that has been understood is more valuable for future reviewers than a silent correction.

Week 3: Test real interpretation

Run supervised target-reader tasks. Show people the translated notices, metrics or records and ask them what has happened, what remains uncertain, and what they must do next. Log mistakes by severity, correct root causes and rerun the tasks. Use three examples from the worked-cases section and one new case created by your team. Keep rejected translations in the training record with explanations, because an error that has been understood is more valuable for future reviewers than a silent correction.

Week 4: Release with evidence

Perform an independent bilingual review, check status and numerical fields against authoritative records, issue a versioned terminology list, and write a short change report. Establish a route for future amendment and reader feedback. Use three examples from the worked-cases section and one new case created by your team. Keep rejected translations in the training record with explanations, because an error that has been understood is more valuable for future reviewers than a silent correction.

Sources, limits and further reading

The scope and edition were checked against the official published record on 5 November 2026: ISO/IEC official ISO catalogue. For the indoor-system testing context, also consult the US National Institute of Standards and Technology’s ISO/IEC 18305 resource. This article provides original educational examples and does not supply a conformity assessment, licensed standards text or professional authorization. Illustrative results below are invented for learning and are not standard thresholds or actual product test results. This educational guide does not certify any location technology or provide navigation safety guarantees.

This is a specialist translation application, not a general translation curriculum or a competing hub. For the overall knowledge architecture continue to The Master Art of Translation; to develop precise word meanings, use the Vocabulary Learning Hub; and to understand how grammar and semantic relations carry meaning between languages, use How English Works. The three routes form a connected study path: vocabulary clarifies the concept, sentence structure clarifies the proposition, and specialist review checks the practical decision.