SYSE.Preface:6 - Configuration and evidence travel with continuing change

Engineering identity is decision-relative but not arbitrary. A product-family item, actual unit, installed configuration, software realization, description edition, baseline, variant, state, and effectivity range can differ. SYSE.13 supplies the configuration basis needed by a named decision. SYSE.14 connects a proposed or performed world-side change to that basis, its deciding System, permission, implementation, release, cited evidence, and unresolved conditions.

Evidence supports a stated claim only for the receiving decision and conditions to which that evidence applies. A model, experiment, trial, test, certificate, review, or observation supports only the claims for which it is applicable. SYSE.10 connects research and trial results to engineering claim assessments. Use SYSE.4 to reuse compatible current results, qualify evidence use and revise reliance. Select further challenge Work when its attainable contribution justifies the burden or the selected use requires it. A narrower supported answer or a justified stop may already settle the question. Return the result to the Agent responsible for the earliest answer it could change. Safety, security, legal, ethical, financial, certification, acceptance, permission, and release decisions keep their specialist criteria and authority.

A source change is not automatically a world-side System change. A changed model, standard, requirement, MethodDescription, architecture description, or supplier claim first changes an episteme. SYSE.19 traces the claims and engineering decisions that relied on it and revalidates only the affected uses.