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# UML Sequence Diagrams present heuristics uses discuss - Computer Science Engineering (CSE) Notes | EduRev

## Computer Science Engineering (CSE) : UML Sequence Diagrams present heuristics uses discuss - Computer Science Engineering (CSE) Notes | EduRev

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1
UML Sequence Diagrams
Page 2

1
UML Sequence Diagrams
2
Objectives
? To present the UML sequence diagram
notation
? To illustrate uses of sequence diagrams
? To present heuristics for making good
sequence diagrams
? To discuss when to use sequence
diagrams
Page 3

1
UML Sequence Diagrams
2
Objectives
? To present the UML sequence diagram
notation
? To illustrate uses of sequence diagrams
? To present heuristics for making good
sequence diagrams
? To discuss when to use sequence
diagrams
3
Topics
? UML interaction diagrams
? Frames, lifelines, and messages
? Combined fragments
? Sequence diagram heuristics
? Using sequence diagrams

Page 4

1
UML Sequence Diagrams
2
Objectives
? To present the UML sequence diagram
notation
? To illustrate uses of sequence diagrams
? To present heuristics for making good
sequence diagrams
? To discuss when to use sequence
diagrams
3
Topics
? UML interaction diagrams
? Frames, lifelines, and messages
? Combined fragments
? Sequence diagram heuristics
? Using sequence diagrams

4
Interaction Diagrams
An interaction diagram is a notation for modeling the
communication behavior of individuals exchanging
â€¢ Sequence diagramâ€”shows interacting individuals along
the top and message exchange down the page
â€¢ Communication diagramâ€”shows messages exchanged on
a form of object diagram
â€¢ Interaction overview diagramâ€”a kind of activity diagram
whose nodes are sequence diagram fragments
â€¢ Timing diagramâ€”shows individual state changes over
time
Page 5

1
UML Sequence Diagrams
2
Objectives
? To present the UML sequence diagram
notation
? To illustrate uses of sequence diagrams
? To present heuristics for making good
sequence diagrams
? To discuss when to use sequence
diagrams
3
Topics
? UML interaction diagrams
? Frames, lifelines, and messages
? Combined fragments
? Sequence diagram heuristics
? Using sequence diagrams

4
Interaction Diagrams
An interaction diagram is a notation for modeling the
communication behavior of individuals exchanging
â€¢ Sequence diagramâ€”shows interacting individuals along
the top and message exchange down the page
â€¢ Communication diagramâ€”shows messages exchanged on
a form of object diagram
â€¢ Interaction overview diagramâ€”a kind of activity diagram
whose nodes are sequence diagram fragments
â€¢ Timing diagramâ€”shows individual state changes over
time
5
Sequence Diagram Frames
Frameâ€”a rectangle with a pentagon in the
upper left-hand corner called the name
compartment.
â€¢ sd interactionIdentifier
â€¢ interactionIdentifier is either a simple name or
an operation specification as in a class diagram
sd findWebPage sd rotate( in degrees : int ) : BoundingBox
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