Bill of materials

Bill of materials

Bill of materials (BOM) is the term used to describe the raw materials, parts, sub-components, and components needed to manufacture a finished product. It may be used for communication between manufacturing partners, [cite web |quote=As the primary conduit for data transfer among manufacturing partners, the BoM is central to theproduct life cycle from the very beginning. |url=http://thor.inemi.org/webdownload/newsroom/Articles/BoMwhitepaper.pdf |title=In Search of the Perfect Bill of Materials (BoM) |publisher=National Electromnics Manufacturing Inititative Inc. |accessdate=2008-09-28 |month=March |year=2002|format=PDF] or confined to a single manufacturing plant.

BOMs are hierarchical in nature with the top level representing the finished product which may be a sub-assembly or a completed item.

The first hierarchical databases were developed for automating bills of materials for manufacturing organizations in the early 1960s. [cite web |url=http://encyclopedia2.thefreedictionary.com/Bill+of+materials |title=Bill of Materials |accessdate=2008-09-28 |publisher=The Free Dictionary]

BOMs that describe the sub-assemblies are referred to as modular BOMs. An example of this is the NAAMS BOM that is used in the automative industry to list all the components in an assembly line. The structure of the NAAMS BOM is System, Line, Tool, Unit and Detail.

A bill of materials "implosion" links component pieces to a major assembly, while a bill of materials "explosion" breaks apart each assembly or subassembly into its component parts. A BOM can define products as they are designed (engineering BOM), as they are ordered (sales BOM), as they are built (manufacturing BOM), or as they are maintained (service BOM).

The different types of BOMs depend on the business need and use for which they are intended.

A BOM can be displayed in the following formats:
* single-level BOM
* indented BOM
* modular (planning) BOM

In process industries, the BOM is also known as the "formula", "recipe", or "ingredients list"

In electronics, the BOM represents the list of components used on the printed wiring board or printed circuit board. Once the design of the circuit is completed, the BOM list is passed on to the PCB layout engineer as well as Component Engineer who will procure the components required for the design.

ee also

* Bill of quantities
* Configurable BOM
* Enterprise resource planning (ERP)
* Manufacturing resource planning (MRP II)
* Material requirements planning (MRP)
* Modular BOM
* Product Data Management (PDM)

References


Wikimedia Foundation. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • bill of materials — ˌbill of maˈterials abbreviation BOM noun bills of materials PLURALFORM [countable] MANUFACTURING a list of the parts and materials needed in making, building, or producing something: • Product control will provide the bill of materials for given …   Financial and business terms

  • bill of materials — bill of quantities …   Accounting dictionary

  • Bill Of Materials - BOM — A comprehensive list of raw materials, components and assemblies required to build or manufacture a product. A bill of materials (BOM) is usually in a hierarchical format, with the topmost level showing the end product, and the bottom level… …   Investment dictionary

  • bill of materials — BOM 1) A document listing all the materials required to produce a range of products, including all the components and their relevant quantities, the order in which they are assembled, and the work centres that perform the assembly. The BOM is one …   Big dictionary of business and management

  • bill of materials — noun a) A list of materials and components used in a manufactured item, sometimes appended to an engineering diagram of the item. b) A computerized list of materials and components, structured in a manner to support computer based materials… …   Wiktionary

  • Bill-of-Materials — Eine Stückliste ist eine strukturierte Anordnung von Objekten. Eine Materialstückliste ist eine strukturierte Anordnung von Teilen oder Baugruppen, die zur Herstellung eines anderen Teiles benötigt werden. Eine Stückliste ordnet die Teile eines… …   Deutsch Wikipedia

  • bill of materials — BOM A summary of the *raw materials and other elements of a manufactured product. A BOM can serve as (i) a record of the components of a product and (ii) a control document for the manufacturing process. The term can also be used in reference to… …   Auditor's dictionary

  • bill of materials — detailed hierarchal list of all components necessary to manufacture a product …   English contemporary dictionary

  • Manufacturing bill of materials — A manufacturing bill of materials (MBOM) is a type of bill of materials (BOM) reflecting the product as planned by manufacturing engineering, also referred to as the as manufactured , as built or as ordered bill of materials. This type of bill of …   Wikipedia

  • Bill of Resources — (BOR) describes a list of resources such as labor needed to complete a saleable product.The Bill Of Resources is used in Capacity planning to prioritise and schedule work in Manufacturing resource planning and Enterprise Resource Planning.The… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”