Answered: A library wants to build a simple…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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A library wants to build a simple online recommendation system for a summer reading programme. The system involves people reading and recommending books and authors. • Readers (people) have a screen name as well as a real name and contact information, including an unknown number of phone numbers they can be contacted at. • Books have a title, ISBN, genre and reading level. • An author has a name and nationality. They can write zero or more books. • Assume that Books are written by only one author. • The database records what books a reader has read. • Readers can “like” books. • Readers can “like” authors independent of the books the author has written. Create a hand-drawn, conceptual entity relationship diagram (like the last lab, except that you’re including attributes) describing this circumstance for a database designer.

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