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Editor to share with you what the UML model diagram and its functions are, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

UML Model Diagram and its function

1. Structure class UML model diagram-describes the static structure of the system application

(1) Class diagram-describes the static structure of classes in the system, showing a set of classes, interfaces, and collaborations and their relationships. The static relationship described is valid throughout the life cycle of the system.

The system can have multiple class diagrams, giving the main responsibilities of the class at the high level and the attributes and operations of the class at the lower level. It can be used when modeling logical database schema, system vocabulary and simple collaboration. It can be used to represent the conceptual model.

(2) object graph-shows a group of objects and their relationships. The object diagram is used to illustrate the data structure and representation snapshot of the instances of things reflected in the class diagram, which is an example of the class diagram. Displays multiple object instances of the class instead of the actual class.

(3) component diagram-describes the physical structure of code components and the dependencies between them. Modeling source code, executable releases, physical databases, and adjustable systems

(4) configuration diagram-shows the deployment of runtime processing nodes and their components. It describes the physical topology of the system hardware and the software executed on this structure, and it describes the static deployment view of the system structure, that is, the physical system that describes the release, delivery, and installation.

2. Behavior class UML model diagram-describes all aspects of system dynamic behavior.

(1) use case diagram-shows a set of use cases, users, and the relationships between them. That is, describe the function of the system from the user's point of view, and point out the operator of each function. Some of the methods used to collect the actual needs of users

(2) sequence diagram-shows a set of objects and messages sent and received by this group of objects. Used to model the control flow in chronological order, illustrate the dynamic view of the system, and emphasize time and sequence.

(3) collaboration Graph-shows a group of objects and their connections to each other, as well as the messages sent and received by this group of objects. Emphasis on the relationship between upper and lower levels emphasizes the organization of the object structure of sending and receiving messages, and the control flow is modeled according to the organizational structure.

(4) State Diagram-shows all possible states of a particular object and the state transitions caused by various events. Describes the state machine, emphasizing the behavior of an object in the order of events

(5) activity Diagram-A special state diagram that describes the activities that need to be done, the order in which they are performed, and the workflow. It is used for functional modeling of the system and emphasizes the control flow between objects.

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