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Chapter 2 Building an Object-Oriented Model
37
An interface definition also includes the following properties, which are
defined on associated property sheets:
Property
Description
Attribute
Defines the characteristics of an interface
Operations
Carries out a service that effects behavior
Business rules
A rule that your business follows. Business rules guide and
document the creation of a model
Analyzing interface properties
The visibility of an interface refers to the way in which it can be seen by
other objects. An interface that is visible to another object may influence the
structure or behavior of the object, or similarly, its own properties may be
affected by the other object.
Property
Visible
Private
Only to the interface itself
Protected
Only to the interface and its inherited objects
Package
To all objects contained within the same package
Public
To all objects in workspace
Creating an interface
There are three ways to create an interface:
♦
Create an interface symbol in the Browser
♦
Create an interface symbol directly in a diagram
♦
Add a new interface to the list of classes
Creating an interface from the Browser
v
To create an interface from the Browser:
1
Right-click the Interfaces category in the Browser.
2
Select New from the contextual menu.
Visibility
Содержание Powerdesigner 7.5
Страница 1: ...OBJECT ORIENTED MODEL User s Guide POWERDESIGNER 7 5...
Страница 8: ...viii...
Страница 22: ...Defining OOM properties 12...
Страница 97: ...Chapter 2 Building an Object Oriented Model 87 4 Modify the operation display preferences 5 Click OK...
Страница 144: ...Defining check parameters 134...
Страница 208: ...Generating for XML 198 6 Click OK An XML file is generated with the file extension xml...
Страница 210: ...Customizing scripts 200...
Страница 224: ...Generating a CDM from an OOM 214...
Страница 238: ...Generating a PDM from an OOM 228...
Страница 260: ...Object language editor categories 250...
Страница 268: ...Applying business rules to objects 258...
Страница 288: ...278...