Introduction to Software Systems 1110/1140/1510/6710

UML Unified Modeling Language

UML S2

Introduction to Software Systems 1110/1140/1510/6710

UML

Unified Modeling Language Standardized modeling language, includes a set of graphic notations to create visual models of object-oriented systems. We will only consider class diagrams. We only model user-defined classes (not String, for example)

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S2 UML

Introduction to Software Systems 1110/1140/1510/6710

UML Class Diagrams

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Classes represented by boxes with 3 parts: •  Name of class •  Attributes of class (fields) •  Methods of class

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UML S2

Introduction to Software Systems 1110/1140/1510/6710

UML Member Attributes

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Common notation: •  public (+) •  private (-) •  protected (#) •  package (~) •  static (underline).

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S2 UML

Introduction to Software Systems 1110/1140/1510/6710

UML Relationships

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We will limit ourselves to the following: •  Inheritance (is a) •  Interface implementation (does this) •  Composition (is composed of) •  Aggregation (is made up of) •  Dependency (uses a)

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S2 UML

Introduction to Software Systems 1110/1140/1510/6710

UML Example

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S2 UML