- The behavior of a class is represented by its operations
- Operations may be found by examining interaction diagrams
Classes are drawn as rectangles. Lists of attributes and operations are shown in separate compartments. The compartments can be suppressed when full detail is not needed. A class may appear on several diagrams. The attributes and operations are often shown on one diagram and suppressed on other diagrams. Relationships among classes are drawn as paths connecting class rectangles. The different kinds of relationships are distinguished by line texture and by adornments on the paths or their ends.