use case diagram smartdraw

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 core of nine children, her main function is to

The relationship between use cases should be difficult to understand when drawing a use case diagram. The relationship between use cases can be divided into three types: Include, extend, and generalization. First, we will introduce generalization, which is easy to understan

first, and then the three tasks are performed. These three tasks are executed at the same time, not successively, so the print result is "Task 3--> task 2--> Task 1" Step diagram (ii) asynchronous execution + serial queue Implementation code: Asynchronous execution + Serial queue -(void) asyncserial{ //Create a serial queue dispatch_queue_t \ = dispatch_queue_create ("identifier", dispatch_queue_serial); NSLog (@ "-

This article is from my PPT that provides case training. This article includes1. Basic concepts of Use Cases2. Functions of Use Cases3. Where to find use case clues4. How to discover Use Cases5. Guidelines for writing

In UML, use case seems to be the most simple. The main function of case modeling is to express the functional requirements or behaviors of the system. In my understanding, Case modeling can be divided into use case diagrams and

Content model use case design Use case diagrams are used to describe the relationships between roles and use cases or use cases and use cases, highlighting the functions that the syste

Definition: Make sure that a class has only one instance and instantiate it and provide this instance to the entire system.Type: Creating class ModeClass Diagram: Class diagram Knowledge Points:1. Class diagram is divided into three parts, which is class name, attribute, method2. To 3. Modifier + on behalf of public,-representing Private, #代表protected, nothing

Use Cases Using case is a very important concept in system analysis and design, and use cases are a central part of the entire software development process. A use case is an abstract description of a set of action sequences that the system executes and produces correspondin

diagram of the commodity reporting scenario has been completed. A Use Case view corresponds to one or more Use Case cases. For more information about the Use Case, see 《How to Write

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