PSTD-023¶
Pack:
F_OVERLAYSeverity:major
Datum references used in GD&T must be defined per ISO 5459
Rule Card¶
| Field | Value |
|---|---|
| Pack | F_OVERLAY — Industry Overlay and Compliance |
| Title | Datum references used in GD&T must be defined per ISO 5459 |
| Severity | major |
| Check logic | Deterministic |
| Applies to | Compliance overlay |
| Inputs required | datum_scheme |
| Fix template | Define missing datum features/datum system on the drawing (datum feature symbol + leader) so every referenced datum is unambiguous. |
Short Description¶
Ensures every datum identifier referenced by a GD&T callout is associated with a defined datum feature and datum system.
When It Applies¶
This rule runs only when an overlay activates F_OVERLAY. It targets Compliance overlay.
Evidence Profile¶
| Input | Category |
|---|---|
datum_scheme |
Drawing / Spec |
References¶
| Reference | Type | Title |
|---|---|---|
REF-GPS-6 |
standard | ISO 5459:2024 — Geometrical product specifications (GPS) — Geometrical tolerancing — Datums and datum systems |
Compiled Threshold Metadata¶
| Field | Value |
|---|---|
| compiled_from | pilot_deep_research |
| source_rule_id | PILOTSTD-023 |
| source_analysis_mode | drawing_spec |
| source_standard_clause | None |
| source_predicate | {'left': 'drawing.gdt.undefined_datum_reference_count', 'op': '==', 'right': 0} |
| source_evaluator_hint | Extract datum symbols and datum feature identifiers, then cross-check every datum letter used in feature control frames is defined somewhere on the drawing. |
| source_pilot_sets | ['SET_C_GPS_DRAWING'] |
| source_evidence_quality | official_abstract |
| source_needs_manual_confirmation | True |
| source_inputs | ['drawing.gdt.undefined_datum_reference_count'] |
| compiled_inputs | ['datum_scheme'] |
| unknown_source_inputs | [] |
| compile_status | executable_now |
Sources¶
D:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\manifest.jsonD:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\rule_library.jsonD:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\references.jsonD:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\process_classifier.jsonD:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\overlays.jsonD:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\roles.jsonD:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\report_templates.jsonD:\02_Code\36_RapidDraft_DFMBenchmark_ExpertMode\server\dfm\ui_bindings.json