Shulou(Shulou.com)06/02 Report--

This article will explain in detail the example analysis of the four major UML class diagrams. The editor thinks it is very practical, so I share it with you for reference. I hope you can get something after reading this article.

About the Development of UML Class Diagram Software

There are many kinds of inter-class relations, which can be divided into two categories: vertical relationship and horizontal relationship.

Vertical relationship is inheritance relationship, its concept is very clear, and it has become one of the three important features of OO, which is not discussed too much here.

The horizontal relationship is more subtle, and according to UML's recommendation, UML class diagrams can be divided into four categories:

1. Dependency (Dependency)

two。 Association (Association)

3. Aggregation (Aggregation)

4. Combination (Composition)

There is no objection to their strength: dependence

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.