The target architecture connects mission value to authoritative data, trust controls, delivery platforms, and assurance rather than presenting those topics as separate workstreams. The first delivery tranche is chosen only after its source systems, identity boundaries, operating constraints, review obligations, and responsible owners are visible together.
Handover should leave a living decision system, not a static slide deck. Assumptions, unresolved dependencies, investment gates, review dates, and stop conditions remain attached to the portfolio record so later changes in policy, hardware, cryptographic standards, or organisational priorities can be evaluated without rebuilding the strategy from memory.