OPS.8.2:4.5 - Operate the start, recall and resumption conditions
Before starting, establish that the protected service is covered under the selected conditions, the auxiliary unit can use the interval, and the recall or finish signal will reach the performer or controller in time. The existing queue and work instructions can carry the arrangement.
On recall, execute the selected interruption and restoration, then start the protected action when its inputs are ready. If the supporting resource or restoration condition has changed, use the corresponding alternative or revise the affected commitment; repeating the old timing estimate cannot restore availability.
When protected work permits auxiliary resumption, recover its actual state and any changes that occurred during the interruption. Continue from a still-valid checkpoint, revise the plan, restart or discard the unit according to the chosen arrangement. Preserve already incurred work and effects in that decision.
Reopen the arrangement when call timing, service demand, resource access, capability, auxiliary stopping behavior, restoration or repeated interruption costs change. Stop elaborating once the operation has a usable choice under the conditions it needs to protect.