how to use case

Use case diagram: used to describe the relationship between users, requirements, and system function units. It shows a system function model diagram that can be observed by external users. Main Purpose: To help developers understand the functional

Introduction to Software ArchitectureVisual Design:1. Visualize the system in the imagination2. Ability to specify the structure and behavior of the system3. Provide a template that can guide the system to build4. Record the decisions made, form a

Object-oriented model Object-oriented model is a model that uses UML (Unified Modeling Language) to describe the system structure, which realizes the working state of the system from different angles. These graphics help communicate information

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

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

This paper mainly introduces the design process of use case model, first design use case model from system layer, then refine each use case of system layer recognition, design more detailed use case model. The use-case model is the starting point of

Preface: A basic knowledge of the UML use case diagrams and class diagrams that are recorded for learning. UML's use case diagram:The purpose of UML's use case diagrams: To help the development team to understand the functional requirements of the

The use case diagram mainly includes use cases, activists, and relationships. Use Cases: A description of the sequence of actions that the system, subsystem, or class interacts with external participants, including various normal sequences and

This article focuses on business modeling practices, as well as the modeling tools EA Primary use process log.Previous documents have been written to describe the business modeling from different angles, but the rationale and the norm are still not

Use case statements in Shell programming, and use case statements in shell programming Hello everyone, today we bring you the use of Shell programming case statements! In fact, the case statement is quite understandable. In shell programming, the if

ArticleDirectory Basic Concepts Instance requirements It is important to clarify the relationship between use cases when drawing a use case diagram. The relationships of use cases include generalization, extended, and include ).

  From the above use case diagram model, we can get a general idea of what the use case diagram describes. The following is a detailed introduction.   The use case diagram is used to describe what roles can do through a certain system. The use case

From http://www.umlonline.org/school/thread-34-1-1.html Let's take a look at the sample image?   The use case diagram looks pretty good. There is a little person in the diagram, And the use case diagram is a little bit of a feeling of

Start learning the UML modeling language, starting with the use case diagram. Modeling Tools Select VisioThe use case diagram describes the system functions understood by the participants, the main elements being use cases and participants, and

This articleArticle, There will be substantial progress. First, I sorted out a general example of the demand. I thought the granularity was already very fine, and I couldn't do it again. I still firmly believe in one principle: never do anything I

Generally, when we introduce a thing, we will discuss the problem from three perspectives: what it is, why, and how it is. For our Use Case chart, in addition to these three aspects, we also need to add a question about when to draw. However, these

Teach you how to use start uml to draw Use Case Diagrams and uml use cases I have recently prepared to study volley's source code, but I have read some blogs on the Internet. They all work with the diagram. This looks more intuitive and the analysis

The use case diagram is used to describe the relationship between users, requirements, and system functional units. It shows a system function model diagram that can be observed by external users. [PURPOSE]: help the development team understand the

The previous blog summarized the use case diagram, in which the relationship between use cases is only included, because the relationship between use cases is not particularly profound. This is also because the UML use case diagram has not passed

It is important to clarify the relationship between use cases when drawing a use case diagram. The relationships of use cases include generalization, extended, and include ). Include and extend are the most confusing. Next we will thoroughly clarify