manufacturing bill of materials



A manufacturing bill of materials (MBOM), also referred to as the manufacturing BOM, contains all the parts and assemblies required to build a complete and shippable product. MBOM is a type of
bill of materials A bill of materials or product structure (sometimes bill of material, BOM or associated list) is a list of the raw materials, sub-assemblies, intermediate assemblies, sub-components, parts, and the quantities of each needed to manufacture an end ...
(BOM). Unlike engineering bill of materials (EBOM), which is organized with regards to how the product is designed, the MBOM is focused on the parts that are needed to manufacture a product. In addition to the parts list in an EBOM, the MBOM also includes information about how the parts relate to each other. In a batch execution system such as ISA-88, the MBOM will refer to the
formula In science, a formula is a concise way of expressing information symbolically, as in a mathematical formula or a ''chemical formula''. The informal use of the term ''formula'' in science refers to the general construct of a relationship betwe ...
part of the
recipe A recipe is a set of instructions that describes how to prepare or make something, especially a dish of prepared food. A sub-recipe or subrecipe is a recipe for an ingredient that will be called for in the instructions for the main recipe. His ...
. A recipe will include a "recipe procedure" and "equipment requirements" in addition to the formula. The "recipe procedure" explains the steps to make the end product. The "equipment requirements" describes the machines and tools that are necessary to make the product. In ISA-95 terms, the MBOM will refer to the "material specification" in the "product definition model". An MBOM is not the same as "as manufactured" or "as built". The MBOM can be viewed as the ingredients in a recipe to make a cake, where as "as built" refers to the actual materials that were consumed to make the cake. In ISA-88 terms "as built" is the same as the batch record, in ISA-95 terms "as built" is the same as a "segment response" in "production performance".ANSI/ISA–95.00.02–2001 The details in an MBOM are good enough to allow it to be used in a manufacturing operations management (MOM) System or manufacturing execution system (MES). The MBOM typically contains more information than what is needed to do the MRP (
material requirements planning Material requirements planning (MRP) is a production planning, scheduling, and inventory control system used to manage manufacturing processes. Most MRP systems are software-based, but it is possible to conduct MRP by hand as well. An MRP syste ...
) part of an MPS ( master production schedule) in an ERP (
enterprise resource planning Enterprise resource planning (ERP) is the integrated management of main business processes, often in real time and mediated by software and technology. ERP is usually referred to as a category of business management software—typically a sui ...
) system.


{{Reflist Production planning Enterprise resource planning terminology