May 2002
Intermediate to advanced
416 pages
8h 37m
English
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13.2. Associations Involving Competition
13.2.1. Competition in the Domain
For some associations, linking objects involves competition for resources. In the online bookstore, customers do not have to compete with one another to place an order; the store can accept as many orders as it likes.[1] Similarly, the association between publishers and products is not competitive; there is a seemingly unending supply of new books (about UML?), and any publisher's desire to publish a book can be satisfied.
[1] We have purposely ignored the problem of limited stock and back ordering. All the mechanisms necessary to build those models are covered in this section.
In contrast, consider how shipping clerks select shipments to pack. The Shipping Clerk statechart ...
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