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Objectives: Sequence Diagram

1. You will able to create a sequence diagram.

2. Assign objects in sequence diagrams to classes

3. Map messages to operations

4. Create scripts for sequence diagrams

5. Create a collaboration diagram from a sequence diagram.

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Sequence Diagram Toolbar

Selection tool

text

note

Note anchor

Object

Message

Reflexive message

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Creating a Sequence Diagram

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Object and Class Representation

(a) Actor

(b) Object only

(c) Class only

(d) Object and Class

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Another way of assigning an Object to an Existing Classes :

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Messages

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To make the message as an operation

a)

c)

b)

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To create messages from the existing operations

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Focus of Control

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Messages Deletion and Focus of Control

Important:

All message within a focus of control are deleted when the message starting the focus is deleted

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Sequence Diagram with Scripts

Script

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Collaboration Diagram

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Exercise : Sequence Diagram

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Nested Focus of Control