Collaboration Diagram

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1. Collaboration Diagram

2. Sequence and Collaboration Diagrams
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Types of Interaction diagrams
There are two types of interaction diagrams:
•Sequence diagrams:
–emphasize the order / Sequence or
concurrency of the interactions.
•Collaboration diagrams:
– emphasize the interacting objects.

3. Sequence and Collaboration Diagrams
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Scenarios
•Use case diagram presents an outside view
of the system.
•Flow of events, captures the functionality of
the use case
•Scenarios are used to describe how use
cases are realized as interactions among
societies of objects

4. Sequence and Collaboration Diagrams
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Scenarios
•It is one path through the flow of events for the use
case.
•Scenarios help discovering objects, classes and
object interaction needed to carry out a piece of
the functionality in use case
•Scenarios shows how the responsibility of a use
case are distributed among the objects

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Scenarios how to capture?
•Sequence Diagram
•Collaboration Diagram

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Sequence Diagram

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Sequence Diagrams
•A sequence diagram displays object
interactions arranged in a time sequence
: Student
registration
form
registration
manager
math 101
1: fill in info
2: submit
3: add course(joe, math 01)
4: are you open?
5: are you open?
6: add (joe)
7: add (joe)
math 101
section 1

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Sequence Diagram (Example)

9. Sequence and Collaboration Diagrams
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Collaboration Diagram

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Collaboration Diagrams
•Dynamic behavior of objects can, in addition to
sequence diagrams, also be represented by
collaboration diagrams.
•The transformation from a sequence diagram into
a collaboration diagram is a bi-directional function.
•The difference between sequence diagrams and
collaboration diagrams is that collaboration
diagrams emphasize more the structure than the
sequence of interactions.
•Within sequence diagrams the order of interactions
is established by vertical positioning whereas in
collaboration diagrams the sequence is given by
numbering the interactions.

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Collaboration Diagrams

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Another Example
Sequence diagram

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Another Example
Collaboration diagram

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Fun Example
Objects

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Fun Example
Sequence diagram

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Fun Example
Sequence diagram

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Fun Example
Collaboration diagram

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When to use Interaction Diagrams

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Rational Rose
Live Demo

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Your Turn - Lab Activity
Practicing Interaction Diagrams
Use Rational Rose 2002 to create Sequence
and Collaboration diagrams for the Scenario
provided in Lab 09 of lab manual

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What Next…?
•For your project, you need to:
–Discover Classes from flow of events
–Identify Boundary, Control and Entity Classes
–Capture dynamic behavior of use case using
Sequence and Collaboration diagrams