1) 类(Class)封装了数据和行为,是面向对象的重要组成部分,它是具有相同属性、操作、关系的对象集合的总称。 2) 在系统中,每个类具有一定的职责,职责指的是类所担任的任务,即类要完成什么样的功能,要承担什么样的义务。一个类可以有多种职责,设计得好的类一般只有一种职责,在定义类的时候,将类的职责分解成为...
This records that a certain flight number has a departure airport and a destination airport. An example of a flight number isLX317, a daily flight of the Swiss airline Crossair from London to Zurich. Figure 4.34 Class diagram with Aggregation Among the many domain meanings that an association ...
1) 类(Class)封装了数据和行为,是面向对象的重要组成部分,它是具有相同属性、操作、关系的对象集合的总称。 2) 在系统中,每个类具有一定的职责,职责指的是类所担任的任务,即类要完成什么样的功能,要承担什么样的义务。一个类可以有多种职责,设计得好的类一般只有一种职责,在定义类的时候,将类的职责分解成为...
一、时序图简单介绍(Brief introduction) 二、时序图元素(Sequence Diagram Elements) 角色(Actor) 对象(Object) 生命线(Lifeline) 控制焦点(Focus of Control) 消息(Message) 自关联消息(Self-Message) Combined Fragments 三、时序图实例分析(Sequece Diagram Example Analysis) 时序图场景 时序图实例 时序图实例分析...
Did you obtain that image after running asciidoc on a diagram file or did you just use your local copy of plantuml? I suspect that internally, the asciidoc plugin uses a different version of plantuml. For example, I found this asciidoc plugin: https://github.com/hsanson/asciidoctor-...
The C4 model can be explained as a map. Maps can be drawn with a different scale. By changing scales, for example, you can have a world map with countries and continents or a town map with streets and buildings. Like so, the C4 model differentiates the level of a diagram to depic...
Different types of classes are represented in a UML Class Diagram: During the Analysis phase, several stereotypes (analysis classes) are created. In a MVC (Model View Controller) architecture: Boundary(GUI) classes that interacts with users. ...
类图(Class Diagram): 类(Class)封装了数据和行为,是面向对象的重要组成部分,它是具有相同属性、操作、关系的对象集合的总称。 类一般由三部分组成: 类名(Class):每个类都必须有一个名字,类名是一个字符串。 属性(Attributes):属性是指类的性质,即类的成员变量。类可以有任意多个属性,也可以没有属性。 UML中...
类图(class diagram)是一种静态结构图(structure diagram),强调的是系统式的建模。是一种面向对象的模型,采用对象,属性,操作,关联等概念展示系统的结构和基础。 类描述对象,是对象的蓝图,而对象是类的可用实例。我们使用类来创建对象。举个例子,我们说马是一种类,一匹白马就是一个对象。 参考《软件工程——实践者...
a dialog box is a good example of a view. A controller object implements the logic for the allowable transactions that can be performed on the model. The model object encapsulates the fine-grained business logic and data. MVC Sequence Diagram Example: Hotel Reservation Fragment This sequence ...