The document discusses collaboration diagrams, which capture the dynamic behavior of objects collaborating to perform tasks. Collaboration diagrams illustrate object interactions through messages in a graph format. They show objects, links between objects, and messages to model control flow and coordination. Notations are used to represent classes, instances, links, messages, return values, self-messages, conditional messages, iteration, and collections of objects. Examples of converting sequence diagrams to collaboration diagrams for making a phone call, changing flight itineraries, and making a hotel reservation are provided.

1. Duration: 3hrs
1
Ramakant Soni
Assistant Professor
Dept. of Computer Science
B K Birla Institute of Engineering & Technology, Pilani, India
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2. Collaboration Diagram Definition
Collaboration Diagrams captures dynamic behavior of
the objects in the system (message-oriented).
They are very useful for visualizing the relationship
between objects collaborating to perform a particular
task.
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Their purpose is to:
Model flow of control
Illustrate coordination of object structure and control

3. Collaboration Diagram Elements
There are three primary elements of a collaboration
diagram:
1. Objects
2. Links
3. Messages
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3. Messages

4. What it represents?
Collaboration Diagrams illustrate object interactions in a graph or
network format.
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5. Notations used for Collaboration Diagrams
 To show an instance of a class, the
regular class box graphic symbol is
used, but the name is underlined.
Additionally a class name should be
preceded by a colon.
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 An instance name can be used to
uniquely identify the instance.

6. Links, Messages and Return Value
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7. “Self” Messages
 A message can be sent from an object to itself.
 This is illustrated by a link to itself, with messages flowing along the link.
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8. Conditional Messages
 A conditional message is shown by following a sequence number with
a conditional clause in square brackets, similar to the iteration clause.
 The message is sent only if the clause evaluates to true.
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9. Iteration or Looping
 Iteration is indicated by following the
sequence number with a star( * ).
 This expresses that the message is being
sent repeatedly, in a loop, to the
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sent repeatedly, in a loop, to the
receiver.
 It is also possible to include an iteration
clause indicating the recurrence values.

10. Representing Collections (Multiobject)
 A multiobject is a set of instances.
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11. EX1: Collaboration Diagram
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Class diagram for : Make a phone call

12. EX1: Sequence to Collaboration Diagram
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Process for : Make a phone call

13. EX1: Sequence to Collaboration Diagram
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Collaboration diagram for : Make a phone call

14. EX2: Sequence to Collaboration Diagram
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Sequence diagram for : change Airline itineraries

15. EX2: Sequence to Collaboration Diagram
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Collaboration diagram for : change Airline itineraries

16. EX3: Sequence to Collaboration Diagram
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Sequence diagram for : hotel reservation

17. EX3: Sequence to Collaboration Diagram
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Collaboration diagram for : hotel reservation

18. References:
[1] http://www.uml-diagrams.org/
[2] http://en.wikipedia.org/wiki/Collaboration_diagram
[3] http://www.uml-diagrams.org/Collaboration-diagrams-examples.html
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ThanksThanks
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