C.21:4.1a - Engineering-grade extension Characteristics

A discipline-health use may add these coordinates when its question needs them. They do not become evidence, assurance, gate, release, Work, or project-authority results.

11. EngineeringClaimJustificationRecoverability — ordinal, polarity higher-is-more-recoverable. It asks whether the exact construction, source, model, lens, or relation carrying an engineering claim’s force can be recovered for the intended use. The reading cites the direct pattern and rule that define or constrain that force.

12. SemioSubstitutionPressure — ordinal or ratio as separately declared, polarity lower-is-less-substitution-pressure. It asks how often a representation, fluent wording, record, dashboard, view, or source chain is mistaken for its engineering subject, relation, or claim.

When either extension is active, add a short explanation naming the current claim kind or use boundary, the direct pattern and rule, admissible use, prohibited overread, and stop or reopen condition. The explanation is claim content, not a new evidence or assurance object.