School system scenario Students come at the beginning of the school year to register in a school system and pay for the year’s fees..Each student is added to the appropriate class .  each class has several teachers already registered in the system, tests are made by the teachers and the teacher adds the students' grades in the system, and at the end of the year the system issues students ’certificates.   draw Entity Relationship diagram(ERD) from above scenario

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Requirement Analysis

A process that determines the user expectations for a software product is called requirement analysis. In software engineering, requirement analysis is known as requirement engineering. It involves communication with end-users and stakeholders to determine whether the system or software requirements are validated, conflicts are solved, and key requirements are documented. The first activity of the Software Development Life Cycle (SDLC) is requirement analysis.