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- State diagrams describe all of the possible
states of an object as events occur.
- Each diagram usually represents objects of a
single class and track the different states of its
objects through the system.
- The basic elements are rounded boxes
representing the state of the object and arrows
indicting the transition to the next state.
- The activity section of the state symbol depicts
what activities the object will be doing while it is
in that state.
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