3、自身关联 4、多维关联(N-ary Association) 5、泛化(Generalization) 6、依赖(Dependency) 7、聚合(Aggregation) 8、组合(Composite) 四、总结 一、简介 类是对象的集合,展示了对象的结构以及与系统的交互行为。类主要有属性(Attribute)和方法(Method)构成,属性代表对象的状态,如果属性被保存到数据库,此称之为“...
上面的类图展示了“继承(inheritance),依赖(dependence),聚合(aggregation),组合(composition)”这三类关系,其实还有一个关联(association)(people to country),这是类之间非常弱的关系,仅仅从视觉上告诉人,类之间有关联。继承都了解,下面着重介绍另外三个。 依赖:A类依赖B,是指在A类中有方法的参数、方法体内或者方法...
类与类之间的关系图(Class Diagram,UML图) 4、多维关联(N-aryAssociation)5、泛化(Generalization)6、依赖(Dependency)7、聚合(Aggregation)8、组合(Composite)四、总结一、简介类是对象的集合,展示了对象的结构以及与系统的交互行为。类主要有属性(Attribute)和方法(Method)构成,属性代表对象的状态,如果属性被保存到...
Multiplicity, which defaults to1. This also appears on the diagram near the appropriate end of the association. Aggregation. This appears as a diamond shape at one end of the connector. You can use it to indicate that instances at the aggregating role own or contain instances of the other....
Appears near the end of the association on the diagram. Aggregation None None (4) - represents a general relationship between instances of the classes. Composite (5) - the object at this role contains the object at the opposite role. You can use the Composite tool to create an association ...
Aggregation is a more specific type of association and shows the 'part-of' relationship in diagrams. However, this type can only link two classifiers and must have a binary association. In UML diagrams, it is represented by a solid line and a hollow diamond near the containing class. ...
ActivityDiagram ActivityFinalNode ActivityMonitor ActivityParameterNode Actor Add AddAgent AddApplicationInsights AddAssociation AddAttachment AddAttribute AddBehavior AddBottomFrame AddBuildToQueue AddButton AddCellToLeft AddCellToRight AddChildNode AddClass AddClause AddColumn AddCol...
Unit5_1(Class_Diagram)可视化建模与UML 石振莲软件学院30867396121zshi@bjut.edu.cn ArchitectureViews 设计视图 DesignView 实现视图 ImplementationView Analysts/DesignersStructure End-userFunctionality 用例视图Use-CaseView ProgrammersSoftwaremanagement ProcessView SystemintegratorsPerformanceScalabilityThroughput Deployment...
Represents a diagram aggregation. A diagram aggregation is when multiple utility network rows are collapsed into a single network diagram element.
The name of the role. Appears near the end of the association on the diagram. Aggregation None None(4) - represents a general relationship between instances of the classes. Composite(5) - the object at this role contains the object at the opposite role. You can use theCompositetool to cre...