Design an ER diagram for a Library book management system. The library has many books. The library keeps several copies of important books. Each book is identified by a unique identification number. In addition, the library records the ISBN number, title of the book, names of the authors of the book, publisher’s name, and year of publication for the books. The books can be issued to members. A member pays Rs 1000 for yearly membership. Membership is renewed every year. A member can be issued a maximum of 5 books. Identify and list the entities, attributes, relationships, cardinality, keys and constraints. Make and state suitable assumptions.
Entities:
1. Book
2. Copy
3. Author
4. Publisher
5. Member
6. Membership
Attributes:
Book:
- ID (Primary Key)
- ISBN
- Title
- Year of Publication
- Publisher ID (Foreign Key)
- Author ID (Foreign Key)
Copy:
- Copy ID (Primary Key)
- Book ID (Foreign Key)
Author:
- Author ID (Primary Key)
- Author Name
Publisher:
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