Planning for the manufacture of a particular product (described by an Asset Specification) begins by defining the set of steps required. That is, a Routing Step is the fact that a particular Work Center is the site of a set of one or more Production Procedures for the production of a particular Asset Specification. This is shown in Figure 16-1.

Routing Step describes an overall effort at a Work Center, while Production Procedure is the definition of a more detailed task. This leads to the following business rule:


Figure 16-1: Routing Steps

Note that, in addition to Expected Duration that is an attribute of Activity Type, the

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