Objects

1
Objects

• Lecture OO06
• Object Scenarios
• Object Interaction Diagrams

2
References

• Ambler, S., The Object Primer, Cambridge Univ.
  Press, 2001, Section 5.9
• Fowler Scott, UML Distilled Applying the
  Standard Object Modeling Language, AWL, 1997,
  Chapt 6

3
Teaching Points

• CRC Card Modeling Example
• Introduction to Message Sequence Diagrams

4
Review

• What is the line connecting objects on a
  collaboration diagram?
• What is the significance of this relationship?

5
CRC Card Example

• Chemical Process Controller

6
Collaboration Diagrams (Messages)

• There must be visibility in order for a message
  to be sent
• Numbering

7
Sequence Diagrams

• A type of Interaction Diagram

8
Iterator Pattern

• Iterate through an array
• Iterate through a list
• Iterate through a tree

9
Java Iterator

• Supercedes Enumeration but essentially the same
  pattern

10
Teaching Points

• CRC Card Modeling Example
• Introduction to Message Sequence Diagrams