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Design a representation of the data in terms of entities, attributes and relationships between entities. Construct an E-R diagram to depict this representation. Show the cardinalities ratio for each relationship. A social network requests to keep tracking of users and their posts. For each user, the website keeps track of his unique username that identifies him, password, first name, last name, date of birth, and email. A user can add posts as much as he wants. Each post has text, back ground color, and postdate. It is possible for the post to have some uploaded pictures; each picture has a caption and unique filename. A user can be a friend with other friends. Other users may add comments or likes on other users' posts and the pictures of those posts.

Design a representation of the data in terms of entities, attributes and relationships between entities. Construct an E-R diagram to depict this representation. Show the cardinalities ratio for each relationship. A social network requests to keep tracking of users and their posts. For each user, the website keeps track of his unique username that identifies him, password, first name, last name, date of birth, and email. A user can add posts as much as he wants. Each post has text, back ground color, and postdate. It is possible for the post to have some uploaded pictures; each picture has a caption and unique filename. A user can be a friend with other friends. Other users may add comments or likes on other users' posts and the pictures of those posts.

Computer Networking: A Top-Down Approach (7th Edition)
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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Design a representation of the data in terms of entities, attributes and relationships between entities. Construct an E-R diagram to depict this representation. Show the cardinalities ratio for each relationship. A social network requests to keep tracking of users and their posts. For each user, the website keeps track of his unique username that identifies him, password, first name, last name, date of birth, and email. A user can add posts as much as he wants. Each post has text, back ground color, and postdate. It is possible for the post to have some uploaded pictures; each picture has a caption and unique filename. A user can be a friend with other friends. Other users may add comments or likes on other users' posts and the pictures of those posts.
Transcribed Image Text:Design a representation of the data in terms of entities, attributes and relationships between entities. Construct an E-R diagram to depict this representation. Show the cardinalities ratio for each relationship. A social network requests to keep tracking of users and their posts. For each user, the website keeps track of his unique username that identifies him, password, first name, last name, date of birth, and email. A user can add posts as much as he wants. Each post has text, back ground color, and postdate. It is possible for the post to have some uploaded pictures; each picture has a caption and unique filename. A user can be a friend with other friends. Other users may add comments or likes on other users' posts and the pictures of those posts.
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