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Software Requirements: -
Design is the first step in the development phase for any techniques and principles for the purpose of defining a device, a process or system in sufficient detail to permit its physical realization.
Once the software requirements have been analyzed and specified the software design involves three technical activities - design, coding, implementation and testing that are required to build and verify the software.
online examination system project .The design activities are of main importance in this phase, because in this activity, decisions ultimately affecting the success of the software implementation and its ease of maintenance are made. These decisions have the final bearing upon reliability and maintainability of the system. Design is the only way to accurately translate the customer’s requirements into finished software or a system.
Use case diagrams model behavior within a system and helps the developers understand of what the user require. The stick man represents what’s called an actor.
Use case diagram can be useful for getting an overall view of the system and clarifying who can do and more importantly what they can’t do.
Use case diagram consists of use cases and actors and shows the interaction between the use case and actors.
An actor could be the end-user of the system or an external system
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