A bill of materials (BOM) is a comprehensive list that outlines all the components, parts, and materials needed to manufacture a product. It serves as a blueprint for production, detailing each item's quantity, specifications, and sometimes even the supplier information. This document is essential for ensuring that manufacturers have everything they need to create a product efficiently. In addition to listing materials, a BOM can also include information about the assembly process, such as the order in which parts should be put together. This helps streamline production and reduce errors, making it a vital tool in industries like manufacturing and construction.