part genealogy

Part genealogy commonly refers to the complete, traceable history of how an individual part or serialized unit was produced, inspected, moved, and modified across its lifecycle. It captures the chain of materials, processes, equipment, people, and data that contributed to that specific part.

What part genealogy includes

In industrial and regulated manufacturing environments, part genealogy typically covers:

• Material lineage: source lots, heat numbers, batches, and supplier details for raw materials and components used in the part.
• Process history: operations performed (machining, coating, assembly, test, rework), the routing followed, and the sequence of steps.
• Equipment and tools: key machines, test stands, fixtures, and calibrated gages involved at each operation.
• Work instructions and revisions: which versions of travelers, work instructions, and specifications were in force when the part was processed.
• Quality and inspection records: inspection results, measurements, test data, nonconformances, deviations, concessions, and approvals tied to the part.
• Operator and timestamp data: who performed or approved each step and when it occurred.
• Location and movement: WIP locations, transfers between work centers or sites, and shipping/receiving events for the part or its subcomponents.

Part genealogy is often implemented through MES, ERP, PLM, or specialized traceability systems that link serial numbers, lot numbers, and work orders to detailed execution and quality data.

How part genealogy is used operationally

Operationally, part genealogy shows up as the ability to:

• Open a specific serial number and see its as-built structure, including all child parts and material lots.
• Trace from a supplier lot or process issue to all affected finished parts for containment or recall analysis.
• Provide evidence of traceability during audits or customer reviews in regulated sectors like aerospace, defense, and medical devices.
• Support root cause analysis by correlating defects with specific materials, equipment, process parameters, or work instructions used on the part.

What part genealogy is not

• It is not just a work order history; it must resolve down to individual serialized parts or clearly defined lots.
• It is not only design data; CAD and engineering BOMs describe intended configuration, while genealogy records what was actually built and how.
• It is not limited to a single system; in practice, genealogy often spans MES, ERP, QMS, and PLM data that must be linked coherently.

Common confusion

• Part genealogy vs. traceability: Traceability is the broader capability to track and link product, process, and data over time. Part genealogy is the specific, detailed trace for a part (or lot), usually presented as an as-built and as-processed record.
• Part genealogy vs. product genealogy: In some organizations, “product genealogy” refers to the full build-up across multiple levels of assembly, while “part genealogy” focuses on a specific component or serialized item. In many contexts, the terms are used interchangeably.