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PrefaceUML is composed of dynamic graphs and static graphs, and the state diagram is one of the most important diagrams in dynamic graphs. definitionused to describe all possible states of a particular object and the transitions between states caused by the occurrence of various events.Purposestudy the complex behavior of classes, roles, subsystems, or components.constituent elementsStatusdefinition: Refers to a condition or condition in the life cycl
For complex practical problems, there are usually dozens or even dozens or hundreds of processes on the data flow diagram. Such a data flow diagram looks unclear. The hierarchical data flow diagram can solve this problem well. System S in Figure 1.5 system processing data flow diagram Its Input and Output refl
1. Sequence diagram (Sequence Diagram) is used to display the relationships between objects, emphasizing the chronological order of messages between objects, and showing the interaction between objects. A sequence diagram is a table where display objects are arranged along the x-axis, and messages are arranged chronologically along the y-axis. Sequence diagrams m
Through the static diagram and behavior diagram introduced in previous blogs, we can use UML to describe the static structure and dynamic behavior of a system. At this time, we have alreadyGraphical representation of the entire structure of a typical Surface-to-face object system. At this point, the software development stage has reached the implementation stage. At this time, we need the implementatio
Translated andromda3.2 User Manual Use case diagram (use-Cases)Use cases represent a set of logical processing, and the use case names cannot be the same. The version of the use case is Activity Graphs)The activity diagram should be a child element of the use case. Initial status (initial states)Each activity requires an initial state, which indicates the start of the use case. There is no input stream and
first, the concept use case diagram (Diagram): Primarily used to describe the behavior of systems and the relationships between functions, is a graph that describes the relationship between participants (Actor) and use cases, and use cases and use cases. Use case diagram = actor + use case + Relationship II, use use case dia
first, the definition: Time series diagrams (Sequence Diagram), also known as sequence or sequential plots, are UML behavior diagrams. It shows the dynamic collaboration between multiple objects by describing the chronological order in which messages are sent between objects. It can represent the sequence of behavior of a use case, and when a routine is performed, each message in a sequence diagram correspo
The basis of software requirement analysis: the model analysis method. The structured analysis method is applicable to the demand analysis of data processing software. It provides the following modeling tools: data flow diagram, data dictionary, machine learning English language, decision table, and decision tree. The usage and method of DFD diagram are described here. DFD-Data Flow digraphs It specifies
From the above use case diagram model, we can get a general idea of what the use case diagram describes. The following is a detailed introduction. The use case diagram is used to describe what roles can do through a certain system. The use case diagram focuses on the external performance of the system, the interaction
Collaboration digoal/communication digoal is an interactive diagram that emphasizes the organizational structure between the objects that send and receive messages. A collaboration diagram shows the relationship between a series of objects and those objects, as well as the messages sent and received between objects. Objects are typically named or anonymous class instances, and can also represent instances o
Package Diagram introduction and common operations of package diagram in rational Package chart Introduction 1. Definition: group model elements and provide a namespace for the elements in the group. 2. role: it is easy to understand complex systems and control the connections between various parts of the system structure. Logically, you can modularize a complex diagram
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 classes class Name: First Letter University C
In the process of learning UML class diagram, UML class diagram relation is a problem that must be mastered, and there are six kinds of relationships in UML definition: dependency, genus, association, implementation, aggregation and combination. The definitions and representations of the methods are described below.Introduction to UML class diagram relationshipsD
To create a method: 1,new----Collaboration diagram 2, press F5 conversion according to sequence diagram Add object links (Figure 2-4-4)(1) Select the Object Link toolbar button. (2) Click the participant or object you want to link.(3) Drag an object link to the participant or object you want to link. Add message (Figure 2-4-5)(1) Select the link message or the Reverse Link message toolbar button. (2) Clic
Essential Diagram for Windows forms is a scalable, high-performance model. NET platform, which can be used to develop interactive drawing and diagramming applications like Microsoft Visio, storing graphical objects in nodes, supporting vector and raster graphics.Specific features: Supports multiple export formats: bitmap, Enhanced metafile, SVG file format The control uses a clear MVC design, separating the data layer, the presentation layer, an
UML class diagram and uml class diagram I. First of all, I declare that the learning of UML class diagrams refers to the example in "big talk Design Pattern" for personal learning and does not involve anything else. 2. paste the Big Bird's UML pattern examples for the dishes. Iii. Description: 1. Class Diagram The first layer displays the class name. If it is a
Use php class diagram drawing tool -- phuml to build the class diagram of the project Yesterday, I occasionally searched for the tools used to create UML class diagrams on the Internet. I was planning to create a class diagram for the statusnet project myself (maybe I should have underestimated the workload ), so I got a windows version of VP_suite 4.2 and tried
Data Center reconstruction (1) -- UML diagram, Data Center reconstruction -- uml diagram Finally, we started restructuring. Data Center reconstruction is a very important small project at this stage, because it involves all kinds of knowledge we learned during this time. First, we used the knowledge of softwares, write the document before development, and then use the UML
Mechanical diagram (Force roadmap) combines the common people's life in the diagram, which is more interesting.This article will take this as evidence of how the graph is inserted into the external image and the mechanics of the text.One of the simplest mechanics diagrams is produced in Chapter 9.2. After a lot of friends have questions, the basic questions include: How to insert text next to a bal
It is more interesting to combine the Mechanics Diagram (Force guide diagram) with the common figure diagrams in life. In this paper, we will explain how to insert external pictures and text in mechanics diagram.One of the simplest mechanics diagrams is produced in Chapter 9.2. Many of our friends have questions, and the main questions are: How to insert text next to a ball How to change a ball
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