uml entity relationship diagram

UML Implementation diagram includes: Deployment diagram, Component diagram Component diagram describes the main functions of a system from the perspective of software architecture; The deployment diagram describes the structure o

top of the graph. The lifeline represents a sequence, modeled role, or object instance. 1 Lifeline painting a square, a dashed line from top to bottom, through the center of the base border (Figure 3). The lifeline name is placed in the square. Figure 3: An example of a student class for a lifeline with an entity named Freshman The UML Lifeline naming standard is in the f

There are many types of UML diagrams, only two of the most important and common-class and time series diagrams are discussed here. 1. Class Diagram through the class diagram, we can easily understand the code architecture, clarify the relationship between the modules, includes inheritance (inheritance), implementation

This essay is well written, in PHP to explain the UML (or vice versa) can be said to be an innovation, through this article, I also found a good station: www.phppatterns.com. The translation of the UML terms comes from the UML User Guide (the Unified Modeling Language user Guide) that I am looking at. UML (Unified mod

This article from: http://www.iteye.com/topic/979557 After summing up Ubuntu, we will continue to integrate UML. In the previous article, we introduced the Relationship Between the use case diagram and the use case. Let's talk about it now.Relationship between class diagrams and classes in UML. When drawing a cl

My understanding of the relationship between uml class diagrams and my understanding of uml class diagrams Relationship between uml class diagrams: Generalization is inheritance. An Implementation relationship is a class that impl

Not many computer players have not learned much, but with the continuous development of the project, those who have never seen before, and those who have never used them are all about to start learning. Although I have heard of UML for a long time, I have never read this book and have never used this tool. The class diagrams of UML are also unknown. Basically, I don't know how to understand it. I haven't us

The behavior diagrams of UML include: Activity diagram and State diagram Activity diagrams and state diagrams are graphs that describe system functions from a dynamic perspective. One: The summary of the behavioral map: Two: The relationship between several graphs 1, the difference between the activity

Today we look at another element of the UML basic building block-the relationship.in UML, there are relationships that represent the basic diagram symbols, which are: Dependency (dependency), generalization (generalization, also known as inheritance), realNow (realization) and Association (Association), and the association is divided into common associations (com

syntactically, must examine the concrete logical relation."Code embodiment": member variable"Arrows and points": solid lines with hollow diamonds, diamonds pointing to the whole5. Combination (composition)"Combinatorial relationship": the relationship between the whole and the part, but part cannot leave the whole and exist alone. If the company and the Department is a whole and part of the

one), "0 ..." (representing 0 or more), "0,1" (for 0 or one), "N...M" (for N to M), "m...*" (for at least m).• Association Relationship (association) is the most commonly used relationship between classes and classes, which is a structured relationship between a class of objects and another class of objects. • In UML

ObjectiveMost of the UML describes the logic and design of the information. The implementation diagram is used to describe the realization of the narrative information. The implementation diagram contains a deployment diagram and a component diagram.Component diagram1. ConceptComponent

Transferred from: http://www.360doc.com/content/10/1206/23/3123_75672033.shtmlSome time ago participated in the technical lecture of Pangayu teacher, UML modelling technology benefited greatly. I also put some of the usual accumulation and the last harvest summarized in this article, mainly on the use case diagram related knowledge.The use case diagram is the fir

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

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

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

Various diagrams in UML are an important part of the UML model. In recent articles, I will introduce nine important diagrams in UML. The general content is shown in the following directory. 1. use case diagram, class diagram, and object