sequence diagram for online shopping system pdf

The Use Case Diagram for Online Shopping Website features on the depends on the users of the system. Use Case Diagram for Online Shopping Website Features:

The lines (links) that represent these elements’ relationships.The use cases or services that the system is capable of performing, and.The actual system (system boundary – the rectangle).The actors with whom the system you describe interacts:.Use Case diagrams consist of only four major components: The purpose of Online Shopping Use Case Diagram is to model what the system should do (What) without thinking about how it should do it (How) yet, and to look at how the system is used from the user’s point of view (External View) instead of from the system’s point of view (Internal View) (implementation of these features). What is the Purpose of Online Shopping Use Case Diagram? In use-case diagrams, the use cases and actors describe what the system does and how the actors interact with it, but not how the system operates internally. These diagrams also show how the system and its actors interact with one another. Use-case diagrams describe a system’s high-level functions and scope. Circles or ellipses are used to depict the use cases. A use case is also often accompanied by other diagrams, as well. The use case diagram are usually referred to as behavior diagram used to describe the actions of all user in a system.Īll user shown in use case are actors and the functionality as action of system.

Sequence diagram for online shopping system pdf