Bill of Materials (BOM)
A structured list of all components, parts, and quantities required to manufacture or assemble a product, such as a medical device. It guides procurement, production, and traceability throughout the supply chain.
What is a bill of materials (BOM)?
A bill of materials (BOM) is a structured, itemized list of every component, part, material, and quantity needed to manufacture or assemble a finished product, such as a medical device. It functions as the master record of what goes into the product and in what amounts.
A BOM can be organized in levels, breaking a product down into subassemblies and then into individual parts. This hierarchy makes clear how the pieces fit together to form the completed item.
Why is a bill of materials important?
In device manufacturing, the bill of materials (BOM) guides procurement, production planning, and cost estimation by specifying exactly what must be sourced and built. It keeps engineering, purchasing, and manufacturing working from a single, consistent definition of the product.
It also underpins traceability across the supply chain, so components can be tracked, verified, and recalled if needed. For regulated medical devices, this accuracy supports quality and accountability from raw parts through to the finished device.
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