Class diagram

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A class diagram is a static structure diagram in the Unified Modeling Language, that describes the structure of a system by showing the system's classes, their attributes, and the relationships between the classes.

Contents 1 Orientation 1.1 Horizontal 1.2 Vertical 1.3 Other orientation 2 Building blocks 2.1 Number of classes 2.2 Number of relationships 3 See also

[edit] Orientation

[edit] Horizontal

[edit] Vertical

[edit] Other orientation

diagonal

[edit] Building blocks

[edit] Number of classes

1 class	2 classes	3 classes	4 classes
5 classes	7 classes	17 classes

[edit] Number of relationships

Zero relations

One relation

Two relations

Four relations

[edit] See also

• Composite structure diagram
• Entity-relationship models
• Unified Modeling Language