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quiddity-rust (pzfreo)MCADConfidence: Medium

Feature identity between two STEP revisions is rebuilt each time from fingerprints and Hungarian matching; it breaks on pattern instances with identical neighbourhoods, re-laid patterns, and features that change kind. They point at SpaceClaim monikers, which record identity at edit time, and note you cannot get that between two independent STEP exports.

Impact Analysis

Persona
Mechanical Designer
Team Size Impact
5x Multiplier
Prototype Delay
3 Days
Est. Annual Cost
$30,000
  • 1 user · 1 month240 min
  • Rest of team960 min
  • Rest of year13,200 min

monthly_minutes × 12 × team_multiplier ÷ 60 × $75/hr = $30k/yr

$75/hr assumed rate.

Annual team-minutes decomposed from the reported monthly inputs.

Evidence & Sources

1 Sources
pzfreo/quiddity-rust Issue #126: A revision-stable feature name from semantics + AAG neighbourhood (moniker-like), matched first
github.com
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Analyst Notes

From the Grok pain-radar digests, Oct 28-29 2026 (Oct 28 8:41 AM ET through Oct 29 early-morning Haitch editions). Verified live 2026-10-29: issue/PR read; title and state confirmed.