Question

Discuss how Use Case diagrams and Use Case Description are used to create software system? Subject: Data Management Min: 200 words

Answer 1

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The main implementation of Use case diagrams is to collect requirements of a system that includes the internal and external resources. Generally, these are design requirements. When creating a use case diagram, the end user's perspective is kept in mind and functional requirements of a system are described. It is a goal-oriented flow of the process that is followed by the developers and the users during the implementation. A use case generally consists of a main or basic flow of use case along with the other alternative flow of events.

Use case depicts how users will perform tasks on the project you are creating. A user's point of view is kept in mind while creating Use cases and how the system will behave when action is performed. It starts with a goal that the user wants to be fulfilled and ends when that goal is fulfilled.

Use case Diagrams consist of actors, use cases, and the relationship between them. Various symbols are used to depict them. Before making a use case diagram and its description, the requirements and goals are analyzed to collect the functionalities after which actors, use cases, and the relationship are created along with the description.

The main aim of creating use case diagrams is to gather all the requirements to create a system, to get a view of the system from the user's perspective, showcasing the interaction between the actors and their requirements, and to identify both external and internal factors influencing the system.

Each use case diagram depicts a particular functionality in a system and a collection of all these use cases is joined together to design the entire system. Use case diagrams give an idea to the users how the system would be developed. It can be called an initial layout of the project.