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Software Engineering Lab CS791

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                                       Assignment-1 UNIVERSITY ADMISSION SYSTEM ER DIAGRAM- An ER diagram is a means of visualizing how the information a system produces is related. There are five main components of an ERD: Entities, which are represented by rectangles. An entity is an object or concept about which you want to store information. A weak entity is an entity that must defined by a foreign key relationship with another entity as it cannot be uniquely identified by its own attributes alone. Actions, which are represented by diamond shapes, show how two entities share information in the database. In some cases, entities can be self-linked. For example, employees can supervise other employees. Attributes, which are represented by ovals. A key attribute is the unique, dist...