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UML diagram to control the flow. Here, I will discuss the constraints of UML 1.x and UML 2.0. In UML 1.x, a constraint may only be assigned to a single message. In UML 1.x, in order to draw a constraint on a sequence
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
Summary :-- recommended reasons : Recently from the Windows operating system to the MAC, is looking at design patterns and refactoring, can not find good UML tools, so on the internet to find an online use of the UML tools, used to find it well, recommend to everyone;-- tool address : https://www.processon.com/;I. UML
Implement UML sequence diagram and uml Sequence This article begins to discuss issues at the code level. It mainly refers to the design and implementation of the markdown function. This article begins with the code outside markdown:UML sequence diagrams are obtained from https://github.com/bramp/js-sequence-diagrams copy. For example, this
software components that will run on their systems. Although the system administrator will not be able to identify physical devices or things from the graphBut they still welcome the component diagram because it provided earlier information about the component and its relationship (which promised the system administrator to easily plan the subsequent work ).SymbolCurrently, the component diagram Symbol Set
freshmanThe lifeline Naming Standard of UML follows the following format: Entity name: Class Name In the example 3, the lifeline represents the entity of the class student, and its object name is freshman. Note that the lifeline name is underlined. When an underline is used, it means that the lifeline in a sequence diag
line from top to bottom passing through the center of the bottom boundary (Figure 3 ). The lifeline name is placed in the square. Figure 3: An Example of the student class used for the lifeline of an object named freshman The lifeline Naming Standard of UML follows the following format: Entity name: Class Name In the example 3, the lifeline represents the entity of the class student, and its object name is fres
) How to divide things when modeling Extension mechanism (extensibility mechanisms) Stereotype, constraint, Tag value 4+1 view The views in UML include the use Case view, the logical view (Logical view), the implementation view (Implementation view), the processes view (process view), the deployment view (Deployment view), and so on. These 5 views are called "4+1" views. Iv. UML M
Administrators can find component diagrams useful because they can get an early view of logical software components that will run on their systems. Although the system administrator will not be able to identify physical devices or physical executable programs from the graph, they still welcome the component diagram, because it provides information about components and their relationships earlier (this allows the system administrator to easily plan su
roadmap, and decide on task allocation and/or improvement of demand skills. System Administrators can find component diagrams useful because they can get an early view of logical software components that will run on their systems. Although the system administrator will not be able to identify physical devices or physical executable programs from the graph, they still welcome the component diagram, because it provides information about components and
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
aggregation is also called containment, but the life cycle of a subclass instance depends on the life cycle of the parent class instance, such as:The company is a whole entity, the company contains the department, the department cannot exist independently of the company. Represented with a solid diamond.Self-correlation (reflection Association) is the association itself, you may not think of the meaning of this existence, but you have to imagine that the class can be abstract, when a class is a
UML Construction Design Model A. Class diagram two. Package Diagram three. Assembly Diagram Four. Deployment Diagram I. Class Diagram 1. Classes: Classes are represented by dig: class names, class properties, operations of cla
UML-united modeling language, unified modeling language-is an object-oriented visual modeling language. UML uses a set of visualized graphical symbols (such as class diagrams) as the modeling language. These symbols can be used to visually describe all aspects of the system. UML describes a model by establishing various relationships between graphs (such as the r
plantuml--Simple and fast UML editing software for EclipseIntroduction: in the application system software development process, if the software is composed of many objects, its structure is difficult to clarify by virtue of analysis, at the same time in order to facilitate the development and reuse of software, so in the development of the system before the modeling is very necessary, in a number of modelin
UMLThe use case diagram is a very useful graph. In demand analysis, it can free people from the heavy documentation, in addition, it prompts people to express their meaning more accurately and intuitively when making demands. Common languagesThe word is often unable to express a thing clearly. At this time, it needs to be expressed in other ways. The example graph is a good method, of course, the use case diagram
1, what is UML UML class diagrams can quickly examine code structures. 2. Theme The use of UML class diagrams in Pycharm. 3. Preparation work (1) Pycharm version is 2.7 or higher (2) Installing the Python Interpreter (3) UML Plug-ins and UML class
name that differs from the other package. The name of the model package is a string that can be divided into simple names and path names .Simple name: refers to a package that contains only a simple name.pathname : Refers to the name of the outer package that the package is located in as a prefix.3, the role of package diagrams:Package diagrams can describe the
This section describes the issues that should be avoided when creating a clean UML diagram. I believe you will be familiar with the methods for creating a clean UML diagram through this article, let's take a look at how to draw a clean UML
Reprinted: http://hi.baidu.com/dburu/blog/item/c60fc1881b37189ca4c2723f.html/cmtid/059096cb1ab0e0f352664fa7 Green UML: A uml class diagram creation tool. You can use green UML to create a UML class
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