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UML Use case diagram Summary author: tianhai110 Published: 2012-01-30 15:33 read: 100,263 recommendations: 57 Original link [Favorites]Use case diagrams are primarily used to describe the relationship between users, requirements, and system functional units. It shows a model diagram of a system function that an external user can observe."Purpose": helps the devel
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:Combined fragmentsRepresents a message sent wi
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
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
there is no loop in the instance diagram. In other words, it can only be a one-way relationship. Figure F Synthesis (composition) Synthesis ( fig. G) is a special form of aggregation, implying "local" within the "whole" life-cycle responsibility. Synthesis is also not shared. Therefore, while the part does not necessarily have to be destroyed with the destruction of the whole, the whole is either responsible for maintaining a partial survival state o
Baidu, look at the review good I collected, study, really do not understand!!!The first is to review the UML in the understanding of nine kinds of diagrams: http://xhf123456789plain.blog.163.com/blog/static/172880482201192222144421/Picture use case diagram: http://xhf123456789plain.blog.163.com/blog/static/172880482201192221826110/The following is an example of a class
The first is to review the UML in the understanding of nine kinds of diagrams: http://xhf123456789plain.blog.163.com/blog/static/172880482201192222144421/Picture use case diagram: http://xhf123456789plain.blog.163.com/blog/static/172880482201192221826110/The following is an example of a class diagram (as if it were in a big talk design):Class
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 diagram is a model used to describe how object groups collaborate in certain behavior aspects over time. A sequence diagram captures the behavi
cases.The object graph shows the set of objects and the relationships between them. The object graph shows the static images of the instances, which are derived from the components established in the class diagram. The object graph deals with the static Design view or static process view of the system as if it were a class diagram. The difference is that it handles the view of a real or typical case.ACompo
I. Purpose It is used to describe the static structure of the system. In all UML diagrams, class diagrams are the most familiar to us. We may have seen them when we are not in contact with UML. Class diagram, as early as in vs2005, there is a small icon "View class diagram" under "solution Resource Manager", and it
UML Class Diagram Relations Daquan1. AssociationBidirectional Association:C1-C2: Refers to both sides know each other's existence, can call each other's public properties and methods.This is described in the GOF design pattern book: Although this relationship is applicable in the analysis phase, we feel that it is too abstract to describe the class relationship within the design pattern, because the associa
I. Purpose For a development team, the sequence diagram is very important because it is used to describe the interaction between a group of objects in the system, especially for crawlers. The project and sequence diagram of business complexity allow us to clarify these complex processes more quickly. Ii. Basic Elements The UML elements in the sequence
To learn UML, you must first learn 14 types of UML graphics. To learn graphs, you must first know what elements are on the graphs. [Note] This document is not a basic tutorial Of the use case diagram, but a graphical Summary of the use case diagram. The use case diagram is
Get the analysis finished product demand is the line design UML (with class diagram) or the first design database? Reply content: Get the analysis finished product demand is the line design UML (with class diagram) or the first design database? I first design the database,
The existence of UMLClass diagram is a UML diagram with high frequency, which is used to describe the classes contained in the system and the relationship between them, to help people to simplify the understanding of the system, is also an important product of the system analysis and design phase, but also the important type of system coding and testing basis.How
: This article mainly introduces how to understand the uml class diagram. if you are interested in the PHP Tutorial, refer to it. In a UML diagram, there are several common relationships: Generalization, implementation, Association, Aggregation, and Composition ), dependency) 1. Generalization) [Generalized relationsh
class. In an aggregation relationship, the subclass instance can be longer than the parent class. to present an aggregation relationship, draw a solid line from the parent class to the partial category, draw an unfilled prism at the end of the parent class association. 2. Combined Aggregation A combination of aggregation relationships is another form of aggregation relationships, but the lifecycle of a subclass instance depends on the lifecycle of the parent instance. For example, a company cl
Original: UML Use case diagram summaryReprint Please specify source: http://blog.csdn.net/tianhai110Use case diagrams are primarily used to describe the relationships between users, requirements, and system functional units. It shows a model diagram of a system function that an external user can observe."Purpose": helps the development team to understand the func
team and the team (as shown in ). The "employee" and "employer" on the two sides of the Association indicate the relationship between the two, while the number indicates the restriction of the relationship between the two, which is the multiple correlation between the two. There are usually "*" (indicating all, not limited), "1" (indicating there is only one), "0... "(0 or more)," 0, 1 "(0 or one)," n... m "(meaning n to m)," m... * "(at least m ). • Association is the most common relationshi
laruence.xmi -n laruence -f xmi --pure-object --no-deployment-view --no-component-view --no-docblock You will get a laruence. xmi file. you can learn the specific parameters of phpuml through phpuml-help. With xmi, how can we convert it into a UML diagram? Visio2007 does not support importing XMI. I found another tool: Altova Umodel, which supports conversion from XMI to
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