A.1.STM:13 - Relations

• Builds on: the Plain long/local boundary in Preface; A.1 and A.1.SCR for exact system recognition; and A.15.6 for project system-of-interest designation, actual project Work, and subject- or claim-centred case recovery.
• Coordinates with: C.32.P2S and the C.30 family for outside-use-to-architecture reasoning; A.3.4 and the patterns for exact dynamics, interaction, causality, participation, assignment, Method, and Work claims in runtime change and system participation; A.2 and A.2.1 for system-role-kind interpretation and assignment; A.3.1, A.12, the A.15 family, A.15.PROD, A.15.5, and A.21 for Method, Work, production, identity, readiness, and gates; E.18 and E.18.NET for TFS and project-level network selection; A.15.6 for the minimal case recovery and closure boundary; A.10 and B.3 for evidence and assurance; A.1.CSD when the missing answer is which other Systems may undergo relevant changes; and C.28 only for actual causal-use claims.
• Optional demonstration: A.22.CGUS may govern a separately admitted demonstrative unfolding slice. Ordinary use of this long mantra requires no CGUS, F.17 row, durable card, or registration.
• Does not replace: any direct pattern named above. A.1.STM returns that pattern’s result or stop to the attention map and defines no world-side predicate.