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Chapter 9 Using Business Rules
257
The Selection window appears. It contains a list of all the business rules
that exist in the model, with the exception of those that already belong to
the object.
4 Select the business rules that you want to add to the object.
5 Click OK.
The business rules are added to the object and appear in the list of
business rules for the object.
6 Click OK.
Attaching an expression to a business rule
A business rule typically starts out as a description. As you develop your
model and analyze your business problem, you can complete a rule by adding
a technical expression.
Each business rule can include two types of expression:
♦ Server
♦ Client
Expressions are used essentially in a CDM or a PDM.
$ For more information on expressions, see the chapter Using Business
Rules in the PowerDesigner PDM User’s Guide.