What is the purpose of traceability in root cause analysis?

• A. To identify exact sources and determine if issues affect other lots or parts; supports containment and actions.
• B. To track only the budget expenditure of a project.
• C. To measure the color of materials used.
• D. To schedule maintenance of equipment.

Answer: (A)

In root cause analysis, traceability maps the product’s genealogy—materials, lots, process steps, equipment, and tests—from finished items back to their sources. This visibility lets you pinpoint the exact source of a defect and determine whether the issue could affect other lots or parts produced with the same materials or processes. The main value is enabling containment—quarantining or stopping use of affected items and deciding if a recall or supplier notification is needed—and providing the data you need to implement corrective actions that address the root cause and prevent recurrence. For example, if a fault appears in a batch, traceability shows all items from that batch and related batches that might be affected and reveals whether a common supplier lot or a specific manufacturing step is responsible, guiding focused investigation and corrective steps. This approach is different from tracking budget, color of materials, or maintenance scheduling, which serve separate purposes.