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- 21:57, 14 January 2026 Admin talk contribs created page F4:Compliance Logic (Created page with "{{Author Credit |author=Admin }} == Summary == F4 Compliance Logic describes how the F4 Application validates GD&T feature control frames against ASME rules and internal constraints. == Scope == F4 validation covers feature control frame structure, datum references, modifier legality, tolerance hierarchy, and feature-of-size requirements. Composite and MSS frames use additional segment rules. == Validation flow == # Parse the feature control frame and e...")