Glossary
What is BOM?
Bill of Materials
Definition
BOM — a bill of materials — is the structured list of every material, part and sub-assembly needed to make one unit of a product, with the quantity of each.
Single- and multi-level BOMs
In a single-level BOM the product is made directly from materials. In a multi-level BOM some components are sub-assemblies with their own BOM — an air-conditioner is made from a “housing”, and the housing from sheet metal and screws.
Typical fields on a BOM line
- Item code and name
- Quantity per unit and unit of measure
- Scrap allowance
- Operation or work centre where the item is consumed
Example
| Item | Quantity per air-conditioner |
|---|---|
| Compressor | 1 |
| Metal housing (sub-assembly) | 1 |
| Refrigerant | 0.8 kg |
| M6 screw | 12 |
BOMs in Fidar
Versioned multi-level BOMs with validity dates are designed into Fidar’s Manufacturing & MRP module; BOM accuracy directly determines MRP accuracy.
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