#C.30.TFS-REL:10 - Rationale

Preface node heading:c-30-tfs-rel-10-rationale:55797

#What this page is

This is generated FPF reference text from the specification preface or supporting sections. It helps interpret FPF; it is not FPF Reference product documentation.

#Methodology

Use it to understand how the specification wants to be read, then return to a route, pattern, or work packet for active work. Cite generated IDs only when the wording changes the task decision.

#Content

E.18 is the governing FPF pattern for selected transformation-flow structures, paths, crossings, flow valuations, and related pins. Architecture needs to use that work without letting it become generic architecture ontology. The smallest stable relation is therefore a C.30-side record that points to E.18 objects and states admissible and non-admissible architecture use.

This pattern also protects functional architecture. A functional structure view may correspond to a transformation-flow structure, and in some cases both may refer to the same selected U.StructureRef; that identity is not automatic. The relation is useful precisely because it preserves the difference while allowing correspondence or positive co-reference.

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Last Updated: 2026-06-17 — upstream FPF commit 646b0b9b (github.com/ailev/FPF)