A.6.3.CSC:2 - Problem

FPF often needs a coarsened form of a source-bearing side: a manager summary, a redacted disclosure note, a dashboard tile, a lookup surrogate, a workshop simplification, or a didactic compression. The coarsened form can be valuable, but it becomes dangerous when readers forget that its admissible use is narrower than the source-bearing side.

A coarsened rendering stays usable under these conditions:

• the source-bearing side retains the fuller claim scope and remains directly reopenable;
• the coarsened rendering has declared concrete loss or reduced recoverability;
• the coarsened rendering makes only the narrower use admissible;
• downstream use is non-admissible from the coarsened rendering alone;
• downstream use reopens the source-bearing side or uses the pattern that supplies the needed definition, constraint, test, method, evidence rule, or genuine authoritySourceRef relation.

Without a named pattern for that relation, neighboring patterns repeat partial coarsening rules locally. The repetition hides the shared constraint and makes it too easy for coarsened renderings to travel as if they were the source-bearing side.