What is the Bill of Material (BOM?)

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Bill of materials (BOM) or Bill of quantity (BOQ) is the chronological description of items of works for construction and fabrication in tables as follows to arrive at a total cost of construction or fabrication of a structure or part of a structure

Sl. #

Item description

Quantity

Unit of measure

Unit cost

Total cost

List of raw material, components, assemblies needed to manufacture end product

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bill of materials (BOM) is the core of all manufacturing systems. Can be assumed in making a BOM cooking is the recipe. Without knowing how the recipe of a dish can make a good culinary ?? A wide variety of definitions BOM Let me be clear, I will show you a variety of definitions BOM result of my acquisition during nge-googling. Because I also just learned about BOM: D A list of the number of components, the mixture of materials, and the raw materials needed to make a product. BOM specify not only the product but also useful for charging and can be used as a list of materials that must be issued to employees of the production or assembly. A list of the number of components, the mixture of materials, and the raw materials needed to make a product. A hierarchical list of materials (component, subassembles, ingredent ..) required to produce a product, showing the quantity of each item needed. Additional information may also be included in the BOM for the planning and costing. A list of the components that make up a system. For example, a BOM of a HOUSE consisting of cement, beams, wood, roof, doors, windows, electricity, heating et al. Each subassembly also comprises of a BOM; heating system composed of hearth, pipe coating, etc. Documents used by a manufacturer or other business to ask for material from inventory that aims to meet the needs of consumers. BOM shows the specifications of each item and 'representative' of the company to customers. Producers of industrial goods and raw materials can get to know the buying habits of its customers from the information in the BOM. BOM is also used for the purposes of accounting for the purpose of calculating the price of products made. A list of raw materials, sub-assemblies, intermediate assemblies, sub-components, parts and the number of requirements to process the final product. Modules Bill of Materials Materials directly (direct material) is a material that becomes an integral part of the finished product and can be traced physically and easily into the product. ROOF example to make a home. Direct labor (direct labor) / manual labor (touch labor) Used for labor costs that can be traced easily to the finished product. Examples of fees for the glazier in making a home. Factory overhead costs (manufacturing overhead) overhead costs include all production costs are NOT included in the direct materials and direct labor. Overhead costs include the cost of indirect materials, indirect labor, maintenance and repairs, etc. BOM Structure The structure of the standard (tree structure / pyramid structure)

subassemblies more than the final products and components more than subassemblies. Only a few number of final products made from its components. The final products are kept in stock for delivery. The structure of the product: Puncak is the end product is the middle section assemblies bottom section components and raw materials Modular Structure (bourglas structure) subassemblies / modular less than final products and components more than subassemblies. In the modular structure of many finished products made from the same subassemblies are then stored for the assembly to meet customer orders. The structure of the product: The highlight is the middle part of the final product is the bottom part is a component assemblies and subassemblies Inverted raw material structure is less than the final product and the number of components and raw materials less than subassemblies. In the inverted structure of many final products are made from a limited number of raw materials based on customer orders. The structure of the product: Puncak is the end product is the middle section assemblies bottom section components and raw materials Format BOM Single-Level BOM Displays assembly or sub-assembly with only one level of children. Featuring direct components needed to make assembly or sub-assembly. Indented BOM item showing the highest level approaching the left margin and the components used in these items is indented to the right margin. It is the type of modular BOM BOM and a critical element in determining the product structure of the final product. Modular BOM determine the components of the material, documents, parts and engineering drawings required to complete a sub-assembly. During modular BOM mostly associated with physical product, the concept will be used in various industries (eg software, medical records). Modular BOM is used by modern information systems to serve a variety of purposes such as determining the components required to produce a sub-assembly, and provide cost information for each component and "rolled up" information for the entire sub-assembly. For products that can be configured / based selection (eg automobile, PC), the company must plan every combination and permutation for each option and make sure that they can meet the needs of consumers. With Modular BOM structure, the company can plan the demand for each module is independent of any final product demand by estimating the level of popularity of the module sub-assembly. Benefits BOM As a means of controlling production which specifies ingredients essential ingredient of a product (raw materials and components), orders must be combined and how much is needed to make one batch for forecasting (forecasting) of goods in and out and inventory as well as the production and transactions could generate production orders from customer orders Calculating how much can be produced by any limitations of existing resources at the time we have. If the resources are insufficient, the system can calculate again how the necessary resources can also help in the procurement process. When they wanted to distribute the production, the system can also determine how to manufacture and transport optimized for customer-defined objectives. In this process all aspects related to finance will be recorded in the system, including calculating how much the cost of production. Ensures that the right amount of material has been sent to the right place at the right time. Planning BOM For the purposes of forecasting and planning used planning approach to product structure or BOM that is known as the Planning BOM. Planning BOM is a grouping manufacture of items and events in the BOM format. Planning BOM does not describe the actual product to be made but describe the product shadow (pseuda product) or a combination product (composite products) that were created to: 1. Facilitate and improve the accuracy of forecasting sales 2. Reduce the number of final products 3. Make the process of planning and scheduling becomes more accurate 4. Simplify 5. Creating a customer order entry system maintenance and data storage more efficient and flexible 6. Perform a two-level scheduling Objectives Planning BOM 1. Allows planners to meet the objectives more operational and non-operational 2. Facilitate the master production scheduling (MPS) or a material planning (MRP) 3. BOM planning approach will be effective if there is a change in the process of growing and competitive environment as well as dynamic

In manufacturing operations,Bill of Materials or BOM for short is an important  abbreviation or term with a huge connotation.It is an engineering document comprising of entire gamut of all component parts ,sub assemblies ,assemblies,modules and rotables required towards manufacture of final product of mechanical/electrical/hydraulic/electronic/biomedical/pharma category.

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 product.