UML Osztálydiagramok és CRC Kártyák

CRC Cards

• CRC cards visually represent class entities and their responsibilities, not based on diagrams.
• Used for debugging in UML.
• Methods and attributes are not listed, only the responsibilities.

Phases of Class Diagrams

• Analysis class diagram
• Collaboration class diagram
• Design class diagram
• Class diagram for design patterns
• Implementation class diagram
• Runtime class diagram

UML Class Diagram: Lines Between Classes

• Cooperation: shows the collaboration between classes
• Association: a link between classes
• Aggregation: a part of a whole relationship (the whole can exist without the part)
• Composition: a stronger form of aggregation (the whole cannot exist without the part)

UML Class Diagram: Multiplicity

• 0..1
• *..0
• 0..*
• 0..3

Class Diagram - Naming

• Italics are used to denote a static class, which cannot have instances.

Class Diagram - Stereotypes

• <>: used to prevent a class from being further inherited.
• <>: used to note important entities for the user.
• <>: used to show classes related to user interfaces.
• <>: shows the use of a class by another.
• <>: Shows the implementation of a use case class.
• <>: Denotes an active class.

Class Diagram - Other Entities

• UML class diagram, use case, and relationship diagrams can coexist
• Use cases are often in UML class diagrams (and used to specify and outline the behaviors of entities in use).

Class Diagram - General Topics

• The glossary (or vocabulary) helps with diagram understanding, and shows synonymous keywords and the context to avoid misunderstandings.
• The class symbol in UML Class Diagrams is a rectangle with three sections: the class name, attributes, and operations.
• UML Class Diagrams can be used to define the relationships between classes.
• A UML Class Diagram shows the structure (static and behavioral semantics).
• A class diagram is an excellent way to model the structure and behavior of an application, with multiple class types.
• Understanding the stereotypes helps in interpreting the UML model's intent.

Ez a kvíz az UML osztálydiagramokkal és a CRC kártyákkal foglalkozik. Ismerd meg az osztályok közötti kapcsolatokat, sokféleséget, és a diagramok különböző fázisait. A kvíz segít a fogalmak mélyebb megértésében és a diagramkészítés során alkalmazható ismeretek megszerzésében.