chakra diagram

9. use case diagram: 1. Definition: a dynamic view composed of actors, use cases, and their relationships used to describe system functions is called a use case diagram. 2. Composition: ① participants (executors) 1) definitions of participants: Participants refer to the abstraction of external entities of people, systems, or classes that exist outside the system and interact directly with the system. A part

Object-oriented modelObject-oriented model is a model that uses UML (Unified Modeling Language) to describe the system structure, and it realizes the working state of the system from different angles. These graphs facilitate information exchange between users, managers, system analysts, developers, testers, and other personnel. This article mainly introduces use case diagram, Sequence diagram and class

Object-oriented model Object-oriented model is a model that uses UML (Unified Modeling Language) to describe the system structure, which realizes the working state of the system from different angles. These graphics help communicate information between users, managers, system analysts, developers, testers, and others. This article mainly introduces use case diagram, Sequence diagram and class

UML static view-class diagram, object diagram, package diagram, and uml package diagram The most important thing to draw a class chart is to abstract the class and first recall the basic content of the class. I. Category 1. Concepts of classes: A class is a basic concept in Object-Oriented Programming. A class is a set

first, the conceptThe interaction diagram describes the dynamic cooperative relationship between objects and the order of behavior in the process of cooperation. Interaction diagrams are often used to describe the behavior of a use case, to show the objects involved in the use case and the message delivery between those objects, i.e. the implementation of a use case. there are two forms of interaction graph, Order

A component diagram (Component diagram) is one of the diagrams used in the physical aspect of an object-oriented system to show the organization and dependencies between a set of artifacts. The idea of using component diagrams is reuse. It is like we build a house, when the general framework of the House is built, the rest of the door and window furniture, such as directly to the installation can be, do not

UML Implementation diagram includes: Deployment diagram, Component diagram Component diagram describes the main functions of a system from the perspective of software architecture; The deployment diagram describes the structure of the system runtime and the mapping between

parameters can not increase or decrease. Although it is sometimes permissible to add new operations, the semantics (or behavior) of the operation should remain the same.Implementation--The implementation of the component can be arbitrarily changed according to the underlying database, algorithm (such as sort) used, as long as the behavior of the customer's concern is not affected, and can even be written in different programming languages.Use case diagrams are a brief description of the externa

Class diagrams and sequence diagrams are directly associated with program code in software system design. To be precise, program code is directly generated by class diagrams, A Sequence Chart can define a class chart method. The use case diagram is used to describe system functions and has no direct relationship with the sequence diagram. A class diagram consists

Objective:If your UML diagram is still a use case diagram, please keep looking, if you do not know the relationship between the business analysis diagram and the activity diagram, please continue to look, if your computer room is refactoring or the cooperation of the omission function (when I refactor the operator work