UML brief introduction one
UML (Unified modeling
language) is a language tool used for software system analysis and design. It is used to help software developers think and record the results of their ideas. UML itself is a set of symbols, just like mathematical symbols and chemical symbols. These symbols are used to describe various elements in the software model and the relationships between them, such as classes, interfaces, implementations, generalizations, dependencies, combinations, etc. Aggregation etc. Use UML to model. Commonly used tools include Rational
Rose. You can also use some plug-ins to model. For example: Amateras
UML plug-in For example: Drawing UML diagrams is to describe your thoughts to others. The key lies in the ideas and organization. Classification of UML diagrams 1, use case diagram 2, static structure diagram (class diagram, object diagram, package diagram , component diagram, deployment diagram) 3. Dynamic behavior diagram (interaction diagram (sequence diagram and collaboration diagram), state diagram, activity diagram) class diagram describes the relationship between classes and is the core of UML diagrams. UML class diagram 1 is used to describe the composition of the classes (objects) themselves in the system and various static relationships between classes (objects). 2. Relationship between classes: dependency, generalization (inheritance), implementation, association, aggregation and combination
