What is Entity relationship modeling produce an entity relationship diagram for the scenerio below; A new relational database is being developed for a university library, the database should allow the librarian to track individual copies of the books, record borrower information, (students can borrow multiple boks), the due date return, fine payable ( for books returned late) and other relevant information Explain the different types of relationships including the cardinality and participation constraint for every relationship identified

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Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.