• how to create a class diagram.
• how to create a class.
• how to insert an attribute into a class.
• how to insert an operation into a class.
• how to create a relationship.
• how to create a package.

Creating a class diagram

1. Click in the quick access buttons.
   • The new element window appears: click "Architecture", and then "UML".
   • The UML model creation wizard starts.
2. Select "Class diagram".
3. Specify the UML model into which the diagram is to be inserted.
4. Choose to edit the diagram directly.
5. Validate the new class diagram. The new model appears in the editor.

Creating a class

1. On the "Class diagram" tab, in the "Creation" group, click "Class". The class creation wizard starts.
2. Specify:
   • the name of the class. This name will be the name of the corresponding WINDEV class (".WDC" file) when generating the UML model.
   • the caption describing the purpose of the class.
3. Define:
   • the attributes of the class. These attributes will correspond to the members of the WINDEV class when generating the UML model.
   • the operations of the class. These operations will correspond to the methods of the WINDEV class when generating the UML model.
4. Validate the description of the class.

Adding an attribute

1. Select the class in which the attribute is to be added.
2. On the "Class diagram" tab, in the "Creation" group, click "Attribute". The attribute creation wizard starts.
3. When generating the UML model, the attribute will be converted to a member of the WINDEV or WEBDEV class. Its characteristics will become the characteristics of the member according to the following table:
   

   UML class	WINDEV class
   Attribute name	Member name
   Caption of the attribute	Comment in the member declaration
   Type of the attribute	Type of information in the member
   Initial value of the attribute	Initial value of the member
   Visibility of the attribute	Visibility of the member

Add an operation

1. Select the class in which the operation is be added.
2. On the "Class diagram" tab, in the "Creation" group, click "Operation". The operation creation wizard starts.
3. When generating the UML model, the operation will become a method of the WINDEV class. Its characteristics will become the characteristics of the method according to the following table:
   

   UML class	WINDEV class
   Name of the operation	Method name
   Caption of the operation	Comment in the declaration of methods
   Type of result returned (if the operation returns a result)	Type of result returned (if the method returns a result)
   Parameters of the operation	Parameters of the method
   Visibility of the operation	Visibility of the method

Create a relationship

1. Depending on the type of relationship to create, on the "Class diagram" tab, in the "Creation" group:
   • click "Generalization" to create a generalization.
   • click "Association" to create an association.
   • click "Dependency" to create a dependency.
2. Specify the requested information.
3. Validate the description of the relationship.

Creating a package

1. On the "Class diagram" tab, in the "Creation" group, click "Package". A new package appears in the UML model.
2. Right-click the new package and select "Description" in the context menu. The package description window opens.
3. Specify:
   • the name of the package. This name is displayed in the package in the UML editor.
   • the caption describing the purpose of the package.
4. Validate the description of the package.

Using packages