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Detection Versus Understand

Status: Current dimension stage boundary

Authority: Current contract (2026-08-12)

Last reviewed: 2026-08-14

Question

Where does dimension Detection end and Understand begin?

Short answer

Detection produces mechanical evidence and possible-dimension bundles. Understand assigns engineering meaning and ownership. The Detection UI must not describe possible dimensions as confirmed dimensions.

Detection may claim

  • text readings that can contain measurements
  • arrowhead evidence
  • straight-line carriers
  • witness-line clues
  • feature-contact clues
  • possible-dimension bundles with complete, ambiguous, or partial clue sets
  • 0 confirmed dimensions until Understand finishes membership and ownership

Detection must not claim

  • dimension type as finished meaning
  • parsed engineering value and units as accepted truth
  • view ownership
  • measured-feature ownership
  • confirmed dimensions

Understand must assign

  • dimension type
  • parsed value and units
  • view ownership
  • measured-feature ownership
  • ambiguity and confidence

Why the boundary exists

The original dimension assembly path mixed association with early meaning. That path became complex and slow. The current contract keeps Detection mechanical and Understand semantic. Incomplete evidence stays visible.

Open Questions

  • Which ambiguity codes become the stable Understand contract for incomplete dimensions?

Sources