SYSE.4:4.3 - Write the engineering-assurance plan

When a future challenge is selected, describe it using the five entries from the Problem frame. Reuse a sufficient existing plan. The plan is usable when a practitioner can recover:

1. one named claim and its current use conditions;
2. one decision question;
3. one challenge and, when future Work needs coordination, a reference to its separately identified A.15.2 WorkPlan;
4. the configuration, validity, uncertainty, and currentness boundary; and
5. the earlier answer the practitioner must reassess if the challenge does not support present reliance.

The engineering-assurance plan is a C.2.1 claim-bearing episteme. Its one EntityOfConcern is the named load-bearing claim episteme. Its ClaimGraph states the planned challenge, decision question, validity boundary, and possible affected earlier answer as claims and references concerning that target claim. The other named entities remain participants in those claims rather than a composite subject. Use C.2.1 to identify the claim content, target claim, and effective reference scheme. The plan performs no Work. Changed identity-bearing content can identify another episteme. A later engineering-assurance account is not automatically an edition of the plan merely because a file or identifier is reused; claim identity and any edition relation remain with C.2.1.

Stop at this plan when it makes the next evidence-producing Work and possible revision target explicit. Expand to a fuller artifact—for example, a test matrix, evidence graph, assurance case, or release process—only when the receiving decision needs it.