Consider Twitter, is a social network platform where the user sends tweets of 280 characters. Each tweet may have a number of hashtags. (a hashtag is a string starting with #) • We record the time and location of each tweet. A tweet may include up to four media items (either a photo or a video) A tweet may refer to a user User can follow a user or Topic • Multiple tweets can belong to a topic, a topic is identified by name Each tweet is automatically assigned a topic To use Twitter, a user must register by his(her) email, phone number, and user name. Design an entity-relationship diagram

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Design an entity- relationship diagram 

Consider Twitter, is a social network platform where the user sends tweets of 280 characters.
Each tweet may have a number of hashtags. (a hashtag is a string starting with #)
We record the time and location of each tweet.
A tweet may include up to four media items (either a photo or a video)
A tweet may refer to a user
User can follow a user or Topic
• Multiple tweets can belong to a topic, a topic is identified by name
Each tweet is automatically assigned a topic
To use Twitter, a user must register by his(her) email, phone number, and user name.
Design an entity-relationship diagram
Transcribed Image Text:Consider Twitter, is a social network platform where the user sends tweets of 280 characters. Each tweet may have a number of hashtags. (a hashtag is a string starting with #) We record the time and location of each tweet. A tweet may include up to four media items (either a photo or a video) A tweet may refer to a user User can follow a user or Topic • Multiple tweets can belong to a topic, a topic is identified by name Each tweet is automatically assigned a topic To use Twitter, a user must register by his(her) email, phone number, and user name. Design an entity-relationship diagram
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