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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29.4. Use Case Statechart Diagrams
A useful application of statechart diagrams is to describe the legal sequence of external system events that are recognized and handled by a system in the context of a use case. For example:
During the Process Sale use case in the NextGen POS application, it is not legal to perform the makeCreditPayment operation until the endSale event has happened.
During the Process Document use case in a word processor, it is not legal to perform the File-Save operation until the File-New or File-Open event has happened.
A statechart diagram that depicts the overall system events and their sequence within a use case is a kind of use case statechart diagram. The use case statechart diagram in Figure 29.2 shows a simplified ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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