![Sybase Powerdesigner 7.5 User Manual Download Page 263](http://html1.mh-extra.com/html/sybase/powerdesigner-7-5/powerdesigner-7-5_user-manual_1416512263.webp)
Chapter 9 Using Business Rules
253
Defining business rules in an OOM
You can define a business rule which can be attached to the following objects
in an OOM:
Domains
Classes
Interfaces
Attributes
Identifiers
Operations
Associations
Generalizations
Realizations
Dependencies
Types of business rule
In PowerDesigner, you can define several different types of business rules.
Rule type
Describes
Example
Definition
Characteristics or properties of
an object in the information
system
A customer is a person identified
by a name and an address
Fact
Certainty or existence in the
information system
A client may place one or more
orders
Formula
Calculation employed in the
information system
The total order is the sum of all
the order line costs
Validation
Constraint on a value in the
information system
The sum of the order totals for a
given client must not be greater
than that client’s allowance
Summary of Contents for Powerdesigner 7.5
Page 1: ...OBJECT ORIENTED MODEL User s Guide POWERDESIGNER 7 5...
Page 8: ...viii...
Page 22: ...Defining OOM properties 12...
Page 144: ...Defining check parameters 134...
Page 208: ...Generating for XML 198 6 Click OK An XML file is generated with the file extension xml...
Page 210: ...Customizing scripts 200...
Page 224: ...Generating a CDM from an OOM 214...
Page 238: ...Generating a PDM from an OOM 228...
Page 260: ...Object language editor categories 250...
Page 268: ...Applying business rules to objects 258...
Page 288: ...278...