uml diagram lucidchart

In my study of design patterns, I used UML for modeling.At first I was not too clear on the understanding of the various relations, on the internet also searched some information, now on the class diagram of these kinds of relationships: dependency, association, aggregation, composition, generalization, implementation of a description.First of all, we need to know two points:1. Order of their relationships:

One. UML OverviewThe role of 1.UML: a complex problem decomposition B realizes the visualizationUML is created by rational company 2.UML is what: is a language, has its own standard expression rules, is an analytical design language, is also a modeling language 3.UML including five large views, 13 kinds of Figure five

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

. "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

closely linked.The subsystem in UML uses a rectangular border to represent a subsystem that can write a description of some of the systems: (5) Relationship A relationship is a relationship between a participant and a participant, a use case and a use case, a use case and a participant, usually divided into four types: association, generalization, inclusion,Extended.The following four relationships are included in the standard use case

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 requirements, the design of the high-level overview, package diagram through the rational

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

The meanings of the symbols of UML class diagramsClass diagram basic symbols can be broken down into dashed lines, arrows, solid lines, hollow right triangles, solid right triangles, hollow diamonds and solid diamonds. These basic graphs are combined to form the basic symbols of the class diagram. It is important to note that the order of these symbols represents

describe complex program logic or multiple parallel transactions. A collaboration diagram is a graphical representation of the related interactions between objects, and can also have hierarchies. Multiple objects can be used as an abstract object, through decomposition, using the lower-level collaboration diagram to express the collaboration between the multiple objects, which can alleviate the complexity

Labels: UML class diagram This article is your own learning notes. You are welcome to repost it, but please indicate the source:Http://blog.csdn.net/jesson20121020 Previously, the diagram drawn in the factory method mode was not strictly in line with the UML class diagram