SYSE.5:10 - Rationale

FPF already explains functions, structures, modules, interfaces, candidate synthesis, and architecture choices. Apply these to engineering by keeping the required outside effect and use visible while engineers iteratively develop functional organizations, actual or intended bearer arrangements, many-to-many allocations, physically meaningful interfaces, realization dependencies, wrong-use challenges, and bounded evidence use for one engineered-System decision. Procurement, realization, assurance, and continuing engineering Work need those constructive and integration details.