uml diagram java

In the previous article "UML System Analysis and Design 02-use case diagram and activity diagram (I)", we mainly explained the use case analysis and drawing methods and techniques in requirement analysis, however, the use case diagram only tells us what the system wants to do. As for how to do it, there is no intuitive

relationship. 4. Interface and implementation Relationship dashed line with a hollow triangle Additions: The interfaces in Java are divided into three categories: 1. Common interface 2. Identity interface 3. Constant interface function: Improve code readability Abstract class and Interface: : Neither can be instantiated different: Methods in abstract classes can be abstract, can be specific The methods in the ; interface are abstract A

Blog Park Flash Home new essay contact management subscribe Essays-295 Articles-111 reviews-6633 STARUML---Recommend a uml tool (very good very strong) Last week a friend of mine, who is also a colleague of the company, recommended a UML tool for me to start using, but the more I used it, the more I felt good, I even want to delete the rose on the machine, directly with this software, I heard that this soft

device or a software system running on a hardware device. -UML Representation　　　　　　　　　-node instance: the instance form of the node. The format is instance Name:node, similar to the class instance format, preceded by a colon with an instance name or without an instance name　　　　　　　　　　　　　　-node type : Depending on whether the node is capable of-Processor: A node with the ability to perform software operations such as calculation and execution-Devi

Uml-unified Model Language Unified Modeling Language, also known as standard modeling language. is a language used to visualize modeling software-intensive systems.There are three main models in UML system development:Functional Model: Display the function of the system from the user's point of view, including use case diagram.Object model: Using the concepts of object, attribute, operation and correlation

be differentiated from the semantic level; The aggregation relationship is also implemented using instance variables. There is no association or aggregation from the Java syntax. Combinatorial (composition) relationship (composition): Also a special case of association, he embodies a kind of contains-a relationship, which is stronger than aggregation, also known as strong aggregation; he also embodies the relationship between the whole and the parts

, and generalized, mainly involving components and components, between components and interfaces, and between interfaces and interfaces. implementation : The relationship between a component and an interface dependencies : The relationship between components and components If there is a dependency on two classes in two components, the relationship between the two components can be expressed as a dependency relationship generalization : between compon

capability. In Java (Figure E) To an instance scope variable, as shown in the code in the "Java" Area in Figure E. You can append other modifiers to an association. The Multiplicity modifier implies the relationship between instances. In the Demo code, the Employee can have 0 or more TimeCard objects. However, each TimeCard only belongs to a single Employee. Figure E Aggregation) Aggregate (Figure FIs a

First, let's talk about why we want to convert the format. The HTML format can be viewed through the web page, which is convenient for those who have not installed the software about UML. I sent a picture to my master, and he said that he would change it to HTML format. How can this problem be solved? It's ration.If Rose comes with this function, it still needs to be converted through other software. Master said Rose can be directly transferred. Let's

Through the previous blog: the use case diagram of UML diagrams, we have completed the division of a software system use case and function module. Now we need to know how to further improve the static structure of the system. With the UML tool, we can obtain the static diagram of the static structure of the software s

can be a signal, event, condition Change (a-in some condition) and time expression.Policing Conditions (Guard Condition): When the police condition is met, the event will not cause a transfer (Transition). result (Effect): The result of the object's state transition. Actionactions (Actions) in a UML state diagram are an executable atomic operation, which means that the action is non-interruptible and its e

A component diagram is used to reflect the physical structure of the Code. From the component diagram, you can understand the compiler and runtime dependencies between software components (such as source code files or dynamic link libraries. You can use a component diagram to divide the system into cohesion components and display the code structure. The main purp

Document directory Add a self-called Message Element Use the call Message Element Use auto-extended message options Use to create a message symbol Add asynchronous Link Use a combination of fragment Elements Save Graph A sequence diagram describes the interaction modes between objects in chronological order. It uses the "lifeline" of objects and the messages passed between them to show how objects participate in interaction. A sequence

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PrefaceIn the summary of the UML state diagram, the activity diagram and the state diagram are closely related. It also has a lot in common with flowcharts.definitionAn activity diagram is a special form of a state diagram. All or