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UML IN A PRODUCTýS LIFE CYCLE

by Venu Kosuri

Start ý Basic Views ý The Whole Picture ý Use Case View ý Use Case Diagram ý Structural View ý Domain Modeling ý Class Diagram ý Behavioral View ý Sequence Diagram ý Collaboration Diagram ý FSM ý Scalability Limitations ý Lack of Support ý State Charts ý Activity Diagram ý Implementation View ý Environmental View ý Sources and PDF

SEQUENCE DIAGRAM

The sequence diagram illustrates all the scenarios as per time scale. Scenarios at system level involve interactions among the domains. Similarly, scenarios at component level involve classes and the instances of the classes of the component. The sequence diagram of a seismic instrument for a particular use case is illustrated in Figure 5.

Figure 5ýHere we have auto detection of an earthquake scenario by a seismic instrument.

The use case is "auto measuring of earthquake intensity." The scenario is shown at system level. Here, every rectangle shows a domain or an object of a domain. The vertical line indicates the lifeline, which represents the objectýs life during the interaction. A lifeline for a domain doesnýt make sense, but for an object, it is extremely relevant. The half-filled arrow represents an asynchronous message, a synchronous message is indicated by a filled arrow, and the response to a synchronous message is represented by a dotted arrow.

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