The class diagram depicts a static view of an application. It is very important to learn the drawing procedure of class diagram.Class diagrams have a lot of properties to consider while drawing but here the diagram will be considered from a top level view.Class diagram is basically a graphical representation of the static view of the system and represents different aspects of the application. They have a one-to-many relationship because a customer can have multiple orders.Order class is an abstract class and it has two concrete classes (inheritance relationship) SpecialOrder and NormalOrder.The two inherited classes have all the properties as the Order class. By using this site you agree to the use of cookies for analytics, personalized content and ads. Page 27 of the same UML spec shows no isStatic in the meta class "classifier" (class). constraints. applications. Class diagram is a static diagram. imposed on the system. It represents the static view of an application. It is also known as a structural diagram.The purpose of class diagram is to model the static view of an application. Class diagrams are the only diagrams which can be directly mapped with object-oriented languages and thus widely used at the time of construction.UML diagrams like activity diagram, sequence diagram can only give the sequence flow of the application, however class diagram is a bit different. final) fields are indicated via naming convention: constants should be in ALL_CAPS . It represents the static view of an application. Following are the purpose of class diagrams given below: A relationship can be one of the following types: (Refer to the figure on the right for the graphical representation of relationships).A special type of association. It gives an overview of an application. The main purpose of class diagrams is to build a static view of an application. constraints. In a class if a variable or a method is static, it has to be underlined. UML Class Diagram. This usually happens because it has one or more abstract methods.

It represents a "part of" relationship.A special type of aggregation where parts are destroyed when the whole is destroyed.The arrows indicate whether, given one instance participating in a relationship, it is possible to determine the instances of the other class that are related to it. The class diagrams are widely used in the modeling of objectoriented systems because they are the only UML diagrams, which can be mapped directly with object-oriented languages.Class diagram shows a collection of classes, interfaces, associations, collaborations, and Class diagram consists of classes, interfaces, associations, and collaboration. In a static structure diagram, right-click any class shape (Class, Parameterized Class, Utility or MetaClass), click Shape Display Options, and then, under General Options, select Realization Link. A collection of class diagrams represent the whole system.The following points should be remembered while drawing a class diagram −The name of the class diagram should be meaningful to describe the aspect of the system.Each element and their relationships should be identified in advance.Responsibility (attributes and methods) of each class should be clearly identifiedFor each class, minimum number of properties should be specified, as unnecessary properties will make the diagram complicated.Use notes whenever required to describe some aspect of the diagram. It represents the types of objects residing in the system and the relationships between them. Class diagrams are the only diagrams which can be directly mapped with object-oriented languages and thus widely used at the time of construction.UML diagrams like activity diagram, sequence diagram can only give the sequence flow of the application, however class diagram is a bit different.

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