OPS.10.1:4.6 - Compare operating changes and return their consequences

Change the modeled mechanism of each alternative: service requirement, resource access, setup, interruption, release, route or policy. Recalculate the affected consequence while preserving unaffected inputs and the common service question.

Compare the relevant results separately: completion, waiting, resource demand, cost, burden and recovery. Use the existing finite-comparison or portfolio methods when these consequences compete. A faster nominal operation can lose to a more predictable one on mean residence, yet remain preferable at another arrival rate or cost.

Distinguish waiting moved before admission from service made faster by reduced interference. The first can improve an internal measure without earlier delivery; the second needs the changed service mechanism in the model. Return the result to admission, release/protection or commitments together with the conditions that can change it. A modeled resource does not establish that it has been provided or authorized.

Stop with the answer the decision needs: a usable alternative, demonstrated shortfall, sufficient bound or an identified unresolved relation. Reopen the affected calculation when arrivals, mix, service, access, dependence or the requested service criterion changes.