Class 06: The UML (1): Objects and Their Relationships

Held: Wednesday, 8 September 2004

Summary: Today we begin our in-depth exploration of the Unified Modeling Language by considering how one represents classes and their relationships.

Related Pages:

• EBoard.

Assignments

• Read Fowler, Chapters 4, 9, and 10.

Notes:

• After we finish UML, we're going to take a quick detour into some tools to ease programming. I may conduct a short survey to gauge your knowledge of these tools.
• In case you couldn't tell, I assume that you can read the textbook, so I judge my role to challenge your knowledge.

Overview:

• The Key Parts of a Class
• Relationships Between Classes
• Incorporating Interfaces
• Q and Q
• Exercise

Documenting Classes

• What are the key parts of a class?
• How do we document each part?

Relating Classes

• What are the ways in which classes can relate to one another?
• How do we document those relationships?

Interfaces

• Which of these relationships also apply to interfaces?
• Do we document these relationships differently? If so, how?

Questions and Answers

• What questions and answers do you have on this stuff?

Exercise

• Using the UML you know, draw a picture of the relationships in candy machines.