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272 CHAPTER 8 The Material Planning Process

material type, and organizational level. We have also discussed various data
(views) of the material master in previous chapters. In Chapter 5, we intro-
duced MRP and work scheduling views, but we did not examine them in depth.
In this section we will discuss these views at length because they are more
directly relevant in material planning. In addition, we will discuss product
groups as they relate to material planning.

MATERIAL MASTER
Data related to MRP and work scheduling are illustrated in Figure 8-2. MRP
data can be quite extensive. Consequently, they are divided into four views
or tabs—MRP 1, MRP 2, MRP 3, and MRP 4—to make the data more read-
able. These data are relevant to both discrete and repetitive manufacturing
(explained in Chapter 6). Our discussion is limited to data relevant to dis-
crete manufacturing. Both MRP and work scheduling data are defi ned at
the plant level. That is, they are specifi c to each plant. These data determine
which strategies and techniques the company will use when planning for the
material. Each MRP view provides a specifi c set of data, as indicated in
the following list.

Figure 8-2: Material master data for material planning

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