uml use case diagram tool

. Generalization (inheritance)Is the commonly understood inheritance relationship, where the child use case is similar to the parent use case, but behaves more specifically, and the child use case inherits all the structures, beha

There are only 3 elements in the Use case diagram, which are roles (actor), "Use Cases", "Association (Association)". The so-called "role" is what people or things use your system, that is, to do some things. For example, you go to an ATM machine to withdraw money. So in

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

the participant, it can be considered a generalization relationship. The generalization relation is the inheritance relation between the general class and the special class. Cars and ships, for example, have a generalized relationship with transportation. They belong to the same means of transport, with their own characteristics.Use cases and use cases: there are generally generalizations, inclusions (uses), and extensions.Use

: This article mainly describes how to use UML diagrams. For more information about PHP tutorials, see. The class name is usually in italics. When an abstract class is used, the class name is marked with {abstract} in the next line. When an interface is used, the class name is used above the interface name. >. Use attribute: visibility symbol property nam

Use Case Conceptual Analysis and staruml instances in UML In UML, use case is similarThe most simple function of case modeling is to express the functional requirements or behaviors of

page-oriented server-side call, usually a form is submitted, and these event parameters represent fields in the form. Page Variables)The page variable definition method is similar to the event parameter. The difference is that the page variable is defined in the input stream of the client action status. These page variables can be used on the generated JSP page .. Decision Point (demo-points)In some cases, it is not enough to have an action or a stream. For example, if the user logs on successf

When drawing a use case diagram, it is important to clarify the relationship between use cases. The relationships of Use cases have generalizations (generalization), extensions (extend), and inclusions (include). Include and extend are most easily confused. Here we combine t

Dragon is the first of ancient Chinese gods, the Legend of the Dragon has nine children, they have their own unique temperament, their respective roles, the benefit of the people. Like our UML, her nine children also have their own unique skills, first of all, today we are going to learn about, use case diagram--the co

requirements and system requirements are divided into two parts, which corresponds to the business use case and the use case implementation. User needs are not necessarily system requirements, some user requirements need not be implemented into the system, such as the diagram