OPS.10.2:8 - Common Anti-Patterns and How to Avoid Them

Mistake	Consequence	Repair
Schedule each department’s copy of one person independently	The plan double-books the actual person.	Constrain that person’s combined occupied intervals.
Keep the first priority rule after it misses a date	A poor sequence is presented as an impossible commitment.	Reconsider permitted orders or obtain an impossibility argument.
Spend each task’s float independently	Several tasks consume the same delivery margin.	Recompute their joint postponement.
Treat the original critical sequence as permanent	New resource competition or delay is missed.	Recalculate conditional criticality from the changed arrangement.
Deduct closed hours while allowing a continuous task to span them	A nominal working-time calculation produces an impossible operation.	Place the complete required occupation in a permitted window.
Add a buffer without rescheduling its feeders	Earlier work competes with existing reservations.	Check the full protected assignment.