OCE.11:4.5 - Operate the overlap and respond to interruption

Observe service and change separately at the points that can change action. Compare actual work and support with the agreed conditions. When a signal is reached, reduce the change slice, stop new starts, use the qualified fallback or begin recovery under the applicable rule.

Treat a hard safety, rights, security or legal condition as a condition, not a spendable reliability budget. A service-specific trade-off requires that service’s own rule and observations; borrowing software percentages does not establish it.

Record what actually happened. Deferred learning or a cancelled probe is not performed work. Failed attempts, missing observations, and unused reserve must remain visible rather than being counted as successful change outcomes. When an interruption invalidates a permission, access condition, support assumption or participant window, renew that input before restarting the defeated branch.