One public service can involve many systems
An application moves through identity verification, payment, case creation and notification. When a dispute arises, the agency needs to reconstruct what happened across systems. Audit logs provide traceable events rather than relying on one screen.
Define the transaction journey
Identify important stages and their relationships to the public outcome.
Use consistent identifiers
Correlation IDs and suitable references help connect events without exposing unnecessary personal data.
Record meaningful events
Relevant state changes, timestamps and outcomes should be captured according to approved requirements.
Preserve integrity and access controls
Logs may contain sensitive information and require appropriate protection and retention.
Handle distributed timing
Events can arrive out of order. Distinguish occurrence time from processing time.
Support investigation
Logs should help identify failed handoffs, duplicates and unresolved transactions.
Break-test: payment succeeds but case creation fails
Can the agency trace the sequence and correct the service outcome?
Connected knowledge
See Digital Evidence Event Sequencing, Transaction Reconciliation and GovTech.