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first, the basic concept UML as a unified Modeling language, is a model of language, then the model is mainly used to represent, this time naturally generated UML diagram. UML mainly consists of basic building blocks, rules and public mechanisms, in which the basic building blocks consist of things, relationships and
chronological and spatial order;(9) activity digraphs, which describe the activity of system elements; Based on their applications in different architecture views, nine types of graphs can be divided:(1) User Model View: use case diagram;(2) Structure Model View: class chart and object chart;(3) Behavior Model View: status chart, sequence chart, collaborati
The object class diagram of UML can be better usedDatabaseModeling. Traditional E-R diagram only focus on data, while UML object class diagram not only on the data, but also on the behavior modeling, these behavior in the physical database is designed as a trigger and storag
. Lifeline) In the sequence diagram, the lifeline represents a dotted line extending down from the object icon, indicating the time when the object exists, as shown in Focusofcontrol) The control focus is the symbol indicating the time period in the sequence diagram. During this time period, the object will perform corresponding operations. It is represented by a small rectangle, such. Message) In the
Object-oriented software development methods include: A, object-oriented analysis (OOA) B, object-oriented design (OOD) C, object-oriented implementation (00i) d, the main steps of object-oriented testing (OOT), E, and object-oriented maintenance (OOM) are as follows. Next we will learn the related diagrams of UML from the object-oriented perspective. This section describes the use case diagram and
After reading the UML video, I want to start drawing documents. I don't know how to start! Let's summarize the nine types of diagrams and relationships in UML, and then start with the document. First. The nine types of UML diagrams are: use case diagram, class diagram, obj
object. The third way to show only the object name does not show the class.Lifeline (Lifeline)A lifeline is represented in a sequence diagram as a dashed line extending downward from the object's icon, indicating the time at which the object existed, such asControl Focus (Focusofcontrol)The control focus is the symbol representing the time period in the sequence diagram, during which the object will run th
-oriented analysis and design, it also supports the entire process of software development starting from requirement analysis. In the system analysis stage, we generally use UML to draw a lot of diagrams, including the use case diagram, status diagram, class diagram, and activity
UML Dynamic Model diagram describes various aspects of system dynamic behavior, including use case diagram, sequence diagram, collaboration diagram, activity diagram and state
Team member Participation Contribution ratio 031602406 Cheng (temporary leader) Entity Relationship Diagram Design 11 031602501 CAI Aerospace Entity Relationship Diagram Design 8 051501124 Wang Bin Class diagram Design 8 031602438 ye Yi
. "When" is the answer, that is, how the development work is scheduled; 4. "Who" means that some development (or maintenance) work is intended to be done by "who? "· 5. "How" means how certain requirements are met; 6. Why? The above is the relevant content of the soft work document. Let's take a look at the relationship between the UML diagram and the document below: First, the
that emphasizes the organizational structure between objects that send and receive messages. The following image is a process of machine down. Conclusion: The differences and connections between these graphs are very important. Sequence Diagram Collaboration diagram Same point: (1) are interactive graphs that represent interactions between objects, describe an interaction, consist of a set of
Transferred from: http://www.cnblogs.com/alexlee73/archive/2011/11/05/2237294.htmlAttached: http://download.csdn.net/download/tiancen2001/15293911.UML is divided into:1) Static Modeling: System Foundation and system fixed frame structure, these graphs are often "static". Class Diagram: Commonly used to analyze business concepts Use case Diagram: Comm
The following is a Library management system state diagram, very typical, covering the use of all the elements of the state diagram, because the state diagram is relatively simple, directly from the view of the picture can be very well mastered. Suppose you want to understand the concept of the element rigor of the state diag
First, the concept: Introduction to the basic concepts of UML: UML:UML (Unified Modeling Language) provides a unified, standard, and visual modeling language for object-oriented software design. It is suitable for describing the whole process of software design which is driven by use case and is architecture-centric. StarUML Use tutorial See http://blog.csdn.net/monkey_d_meng/article/details/5995610/ UML M
a common understanding that developers and users have agreed upon. Use case models are described in several use case diagrams. A use case diagram must include a description of the function, a role, and a role and function correspondence.Role (actor):A role in a software system is the idealization of an external person, process, or thing that interacts with a system, subsystem, or class. An activity this ca
that the sender passes a message to the recipient of the message, and then resumes its activity without waiting for the recipient to return the message or control. The recipient and sender of an asynchronous message are working concurrently. The return message means that the message is returned from the procedure call.Self-correlating messagesRepresents the method's own invocation and one method within an object that invokes another method, such as:C
Most of the models in UML describe the logic and design information: Use Case chart to understand expectations Class diagrams can understand the Vocabulary (class and object) of the problem domain) The status chart, InterAction diagram, and activity diagram can be used to understand how the words in the class
UML modeling in nine kinds of diagram Plus package diagram, if it is written in a blog, it is easy to write a trouble, read it is not convenient, so borrow this blog as a directory to jump to the relevant blog. UML Modeling Detailed: Basic Concepts use case diagram Class
UML defines the following 5 categories, 10 model diagrams. The first class is the use case diagram, the use case diagram describes the function of the system from the user's point of view, and points out the operator of each function. The second category is static diagrams, including class diagrams, Object diagrams, and package diagrams. The class
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