ORIGINAL COMPANY-CONTEXT PRACTICE
Reconstruct a hypothetical energy dispatch decision
Original practice scenario: Design an audit trail for a simulated power-dispatch planner whose forecasts and constraints can change after a recommendation is produced.
Written for independent practice using company context; this is not a verified question from a company interview.
A REASONED APPROACH
Model answer.
A replayable decision needs the inputs and rule versions used at that moment, not merely its final schedule. Later corrections should remain distinguishable from the original evidence.
Work through it
- Assign a decision identifier and retain immutable references to forecast snapshots, available capacity, constraint versions and optimization settings.
- Record proposed schedules, validation outcomes, overrides and their reasons; keep operational execution acknowledgements distinct from planning output.
- Replay archived scenarios in an isolated environment and compare constraint satisfaction and objective values, allowing documented numerical tolerances.
Tradeoffs to discuss
- Full snapshots simplify replay but increase storage; immutable versioned references require reliable retention across dependent systems.
Common pitfalls
- A current forecast must not silently replace the historical input.
- Do not equate a feasible simulated schedule with permission to control physical equipment.