Integral Logistics Management — Operations Management and Supply Chain Management Within and Across Companies

17.2.3b Single-Level Bill of Material, Multilevel Bill of Material, and Summarized Bill of Material

Intended learning outcomes: Differentiate between the single-level bill of material, the multilevel bill of material, and the summarized bill of material.



Continuation from previous subsection (17.2.3a).

A single-level bill of material shows all the components of a product.

Figure 17.2.3.3 shows the three single-level bills of material, each with two bill-of-material positions, as implicitly defined by the example in Figure 1.2.2.2.

Fig. 17.2.3.3       Single-level bills of material.

The multilevel bill of material or indented bill of material shows the structured composition of a product, across all the levels.

Figure 17.2.3.4 shows the indented bill of material for the example in Figure 1.2.2.2.

Fig. 17.2.3.4       Indented bill of material (multilevel bill of material).

In this form, the content corresponds exactly to the graphical represen­tation of a product as a tree structure, again as shown in Figure 1.2.2.2.[note 1703] The quantity per is always the cumulative quantity of the component used at this point in the product (by way of contrast to the graphical form in Figure 1.2.2.2).[note 1704] An algorithm can also be used to generate a multilevel bill of material from the single-level bills of material.

The summarized bill of material is a condensed multilevel bill of material in which each component occurs only once, although the total quantity per is specified.

Figure 17.2.3.5 shows the summarized bill of material for the example in Figure 1.2.2.2.

Fig. 17.2.3.5       Summarized bill of material (condensed multilevel bill of material).

The quantity per is the cumulative quantity of components used in the product. A summarized bill of material is used for manual cost estimation or for quickly calculating the number of components to be bought for a lot of end products. A summarized bill of material can also be generated from the single-level bills of material using an algorithm.

Continuation in next subsection (17.2.3c).




Course section 17.2: Subsections and their intended learning outcomes

  • 17.2 The Master Data for Products and Processes

    Intended learning outcomes: Describe master data of products, product structure, components, and operations. Explain the data structure of item master, bill of material, and where-used list. Disclose the data structure of work center master data, the work center hierarchy, as well as for operation, routing sheet, production equipment, bill of production equipment, and bill of tools.

  • 17.2.1 Product, Product Structure, Components, and Operations

    Intended learning outcomes: Present the concept of master data. Explain the production order as a collection of master data. Describe a simple product structure. Identify the intermediate product used simultaneously as a component in higher-level products.

  • 17.2.2 Item Master Data

    Intended learning outcomes: Present the concept of the item master record. Describe the attributes of the technical information and the stockkeeping information of the item master record. Identify attributes of the item master record for information on costs and prices.

  • 17.2.3a Bill of Material, Bill-of-Material Position, and Where-Used List

    Intended learning outcomes: Present the concepts of the bill of material, of the bill-of-material position, and the where-used list.

  • 17.2.5 The Work Center Hierarchy

    Intended learning outcomes: Present the concepts of workstation and cost center. Explain the work center hierarchy.

  • 17.2.6 Operation and Routing Sheet

    Intended learning outcomes: Present the concepts of the operation business object in association with the routing sheet. Describe the most important attributes of the operation master object. Produce an overview on the work center where-used list.

  • 17.2.7 Production Equipment, Bill of Production Equipment, and Bill of Tools

    Intended learning outcomes: Present the concepts of bill of production equipment and bill-of-production-equipment position as well as production equipment where-used list. Produce an overview on collective tool, bill of tools, bill-of-tools position, and tool where-used list.

  • 17.2.8 Composition of the Basic Master Data Objects

    Intended learning outcomes: Explain the breakdown of the master data into individual classes and their associations using the example of the ball bearing. Describe the basic object classes for planning & control.