May 2002
Intermediate to advanced
416 pages
8h 37m
English
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9.4. Creating and Deleting Objects
Many classes have instances that are created and deleted over time. We can model creation and deletion of objects in the state machines.
9.4.1. Initial Pseudostates
The semantics of UML state machine instance-creation are as follows: First, an object is created, then the state machine instance is started, then the state machine instance is ready to receive events. The state machine instance is started in its initial pseudostate.
Definition: An initial pseudostate is the state in which the state machine instance for an object is started.
An initial pseudostate is shown by a filled-in circle, as in Figure 9.10.
Several transitions may emanate from the initial pseudostate, so long as each is caused by a different ...
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