OPS.17:4.5 - Refresh the affected method claim

Reconsider a method when a relied-on condition changes, its operating result deteriorates, or a credible alternative changes the comparison. Locate the failed claim before replacing the whole repertoire. A change in customer acceptance can affect a service forecast while leaving readiness checks useful.

Use ME.15 when the reusable semantics change: inputs, operations, applicability or result may define a Method variant. Keep changes to the description, supporting tool and one local departure distinguishable. Preserve evidence only for the claims and conditions it still supports. A combination of previously admitted methods needs its own evidence where their interaction changes the claimed result.

Use the available qualified evidence, estimates and judgement to complete the comparison needed by the decision maker, or to document the proposed method’s origins and unresolved claims. Retain the adequate incumbent or bounded candidate account with its actual gap when no further inquiry can make a worthwhile attainable contribution. Use ME.7 for the status of a proposed whole and ME.14 for its practical worth. Maintaining an account or choosing a repertoire supplies no additional Method admission, compatibility, empirical fit or transfer evidence, or permission for operating use.

When an unresolved operating effect could change the decision, compare the attainable contribution of a new trial question or evidence acquisition with its whole burden: design, performance, interpretation, delay and displaced operating Work. Select it only when that contribution is obtainable and worth the burden. For a selected trial, return the effect to observe, protected conditions, authority, stop and comparison basis. When the question concerns competing explanations, include the observation that could distinguish them. ME.11 can guide that trial. The repertoire choice itself establishes neither that the candidate was performed nor that it improved service.