# Domain What it covers 1 Feature-to-Platform Mapping Every feature placed in PWA, Power Pages, Model-Driven Apps, or split. Justified in Architecture Decision Records. 2 CC↔GCC Bridge (APIM) The single security-critical integration layer between Commercial Cloud workloads and RP's GCC back-office. Policies, versioning, caching, audit. 3 Data Architecture Source-of-truth assignment per data element. OASIS read-only. Dataverse for eService records. PDPA classification, retention, lifecycle. 4 Identity Architecture Entra ID tenant design. 3-role RBAC with business units. Token flows across PWA, Power Pages, Power Apps. Conditional access. 5 Non-Functional Architecture SLA, performance budgets, RTO/RPO, accessibility (WCAG 2.1 AA), observability, scaling rules. NFR document part of the contract. 6 Release Strategy Rolling release model. Feature flags. Blue-green via slot swap. VAPT per release. Parallel run with SNApp. 7 Reusable Component Library SGDS rendered three ways: PWA native, Pow...