bill of material (BOM)
(a) A structured list of all the components required to produce a product. (b) A structured list of all the raw materials, ingredients, parts, sub-assemblies, intermediates and components that go into making a parent assembly or finished product.
A BOM will also include the quantities, qualities, source, and stock, reference or model numbers of each component required. A BOM is typically used in conjunction with a master production schedule to plan the acquisition of all required components. In specialized industries the BOM may also be called the formula, recipe or list of ingredients.