July 2001
Intermediate to advanced
656 pages
15h 51m
English
book
Applying UML and Patterns: An Introduction to Object-Oriented Analysis and Design and the Unified Process, Second Edition
by Craig Larman
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16.1. Responsibilities and Methods
The UML defines a responsibility as “a contract or obligation of a classifier” [OMG01]. Responsibilities are related to the obligations of an object in terms of its behavior. Basically, these responsibilities are of the following two types:
knowing
doing
Doing responsibilities of an object include:
doing something itself, such as creating an object or doing a calculation
initiating action in other objects
controlling and coordinating activities in other objects
Knowing responsibilities of an object include:
knowing about private encapsulated data
knowing about related objects
knowing about things it can derive or calculate
Responsibilities are assigned to classes of objects during object design. For example, I may ...
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