Blocking condition
Expired permit or missing isolation confirmation: stop intervention.
TRUSTED FACTORYFLOW
Maintenance, LOTO and return to service
ALARM-100 opens TICKET-100 for ASSET-100.
REFERENCE JOURNEY · SAMPLE DATA
ASSET-100 → TICKET-100 → PERMIT-100
Trigger and responsibility
| Aspect | Detail |
|---|---|
| Trigger | ALARM-100 opens TICKET-100 for ASSET-100. |
| Accountability | Maintenance engineer · Safety owner · Operations |
Sequence and progression conditions
-
Assess impact, hold related work and identify isolation requirements.
-
Approve the permit and have authorized field staff perform LOTO.
Repair and record spares and post-repair test results.
-
Verify safety, close permit and LOTO under procedure and obtain operational return-to-service acceptance.
Blocking and recovery
Reconciled recovery
Post-repair tests fail: reopen repair; a closed ticket cannot automatically enable equipment.
Outcome and evidence
Labels explain the journey; they do not replace each service state machine.
| Item | Result |
|---|---|
| Journey states | OPEN → ISOLATED → REPAIRING → TESTED → RETURNED_TO_SERVICE |
| Evidence | Alarm, permit, LOTO confirmation, repair report and operational approver. |
Related contracts
Only actions with a relevant reference contract are linked. Other steps describe business coordination.
Task/mission APIs do not represent this journey. Dedicated integration follows the relevant service and project contract.