INFS 6225 Object-Oriented Analysis

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INFS 6225Object-Oriented Analysis Design

• Chapter 6 Behavioral Modeling

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Behavioral Models

• Diagram underlying business process
• Represent internal behavior of system
• Iterative
• Technology-independent (Analysis Phase)

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3 Types

1. Sequence
2. Communication
3. Behavioral State

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Review of OO Concepts
Patient Class

• Objects of Patient Class
• Jim Maloney
• Mary Wilson
• Theresa Marks

Attributes - Name - Address - Birthdate
Methods (or Operations)
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Type 1 Sequence Diagrams

• Sequence of events for ONE Use Case
• Show sequence of messages passed between objects

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Sequence Diagram Example
Make Appointment
Becomes . . .
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Sequence Diagram Components
AN ACTOR AN OBJECT A LIFELINE A FOCUS OF
CONTROL A MESSAGE OBJECT DESTRUCTION
anObjectaClass
aMessage()
x
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Practice Exercises
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Type 2 Communication Diagrams

• Show communication flows among objects
• An object diagram
• Show patterns of activity

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Communication Diagram Example
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Communication Diagram Components
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CRUD Analysis
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Practice Exercises
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Type 3 Behavior State Diagrams

• Show different states through which an object
  passes during its life
• Used to show how an instance evolves over time

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Behavioral State Terminology

• State value of attributes at specific point in
  time
• Event stimulus that changes an objects value
• Transition movement of object from one state to
  another
• Action Nondecomposable (Atomic) process that
  cannot be interrupted
• Activity Can be decomposed can be
  stopped/started by Actions

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Behavioral State Example
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Behavioral State Components
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Practice Exercises