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This article mainly introduces what realization is in EA's UML drawing. It is very detailed and has certain reference value. Friends who are interested must finish reading it.

Interface

In general, however, abstract classes still have some functions (properties, methods). We continue to simplify (abstract) until there are only exposed abstract operations without properties and methods, and this state UML has a special name: interface.

The interface is used to define a set of common features and services, which is the agreement between the service provider and the user. The purpose of defining the interface is to replace the implementation provided by different service providers; the abstract class extracts the common characteristics of the concrete class, and implements the complete function through the concrete class. The goal is to extract commonality rather than define behavior. The usage scenarios of the two are very different.

Implement (realization)

The relationship between concrete class and abstract class is called generalization, and the relationship between interface implementation and interface is called implementation (realization).

Representation method

In the class diagram, the representation of the interface and the class are basically the same, except that the "interface" keyword is added to the class name. The implementation takes two forms: one is a dotted line with a triangle at the top of the interface class, and the other is a dependency arrow with the "interface" keyword.

Try to use the one on the left.

The above is all the contents of the article "what is realization in EA's drawing of UML". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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