Boeing Quality QA Practice Test

The message hinges on where the authoritative product data and bill of materials are managed. CAPP relies on a single source of truth for parts and BOM information to build accurate process plans, and that source is the PDM system. PDM (Product Data Management) stores part numbers, BOM structures, revisions, and related manufacturing attributes in a centralized, controlled environment, which CAPP can access to pull the exact components and their relationships needed for planning operations. This ensures the process plan stays aligned with the latest design and part data. Why the others aren’t the primary source for this data: CAD holds design geometry, not the complete BOM or parts relationships needed for process planning. ERP handles broader resource planning and may contain BOM data, but it is not the dedicated data-management repository that tracks detailed product structure and revisions for CAPP purposes. MRP uses BOM information to determine material requirements but relies on the BOM data source rather than being the system that manages and houses the BOM itself. Thus, the PDM system is the best source for parts and BOM data feeding CAPP.