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Question 1: For the following case studies, draw an ER diagram to represent the data requirements as following: A. TV shows Database - Identify the main entity types. - Identify the main relationship types between the entity types. - Identify attributes and associate them with entity or relationship types. - Determine primary (or partial) key attributes for each entity type. Determine the multiplicity constraints for each relationship. - State any assumptions necessary to support your design. Suppose that you are designing a schema to record information about TV shows. Your database needs to record the following information: • For each show, its name, genre, basic_info and participants name. Any show has at least two or more participants. • For each producer, the company name, company country. A show is produced by exactly one producer. And one producer produces exactly one show. • For each channel, its name, start year, head office. A channel may broadcast multiple shows. Each show is broadcasted by exactly one channel. • For each user, his/her username, password, and age. A user may rate multiple shows, and a show may be rated by multiple users. Each rating has a score of 0 to 10.

Question 1: For the following case studies, draw an ER diagram to represent the data requirements as following: A. TV shows Database - Identify the main entity types. - Identify the main relationship types between the entity types. - Identify attributes and associate them with entity or relationship types. - Determine primary (or partial) key attributes for each entity type. Determine the multiplicity constraints for each relationship. - State any assumptions necessary to support your design. Suppose that you are designing a schema to record information about TV shows. Your database needs to record the following information: • For each show, its name, genre, basic_info and participants name. Any show has at least two or more participants. • For each producer, the company name, company country. A show is produced by exactly one producer. And one producer produces exactly one show. • For each channel, its name, start year, head office. A channel may broadcast multiple shows. Each show is broadcasted by exactly one channel. • For each user, his/her username, password, and age. A user may rate multiple shows, and a show may be rated by multiple users. Each rating has a score of 0 to 10.

Fundamentals of Information Systems
Fundamentals of Information Systems
8th Edition
ISBN:9781305082168
Author:Ralph Stair, George Reynolds
Publisher:Ralph Stair, George Reynolds
Chapter3: Database Systems And Applications
Section: Chapter Questions
Problem 2.1CTQ
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Question 1: For the following case studies, draw an ER diagram to represent the data requirements as following: A. TV shows Database - Identify the main entity types. - Identify the main relationship types between the entity types. - Identify attributes and associate them with entity or relationship types. - Determine primary (or partial) key attributes for each entity type. - Determine the multiplicity constraints for each relationship. State any assumptions necessary to support your design. Suppose that you are designing a schema to record information about TV shows. Your database needs to record the following information: • For each show, its name, genre, basic_info and participants name. Any show has at least two or more participants. • For each producer, the company name, company country. A show is produced by exactly one producer. And one producer produces exactly one show. • For each channel, its name, start year, head office. A channel may broadcast multiple shows. Each show is broadcasted by exactly one channel. • For each user, his/her username, password, and age. A user may rate multiple shows, and a show may be rated by multiple users. Each rating has a score of 0 to 10.
Transcribed Image Text:Question 1: For the following case studies, draw an ER diagram to represent the data requirements as following: A. TV shows Database - Identify the main entity types. - Identify the main relationship types between the entity types. - Identify attributes and associate them with entity or relationship types. - Determine primary (or partial) key attributes for each entity type. - Determine the multiplicity constraints for each relationship. State any assumptions necessary to support your design. Suppose that you are designing a schema to record information about TV shows. Your database needs to record the following information: • For each show, its name, genre, basic_info and participants name. Any show has at least two or more participants. • For each producer, the company name, company country. A show is produced by exactly one producer. And one producer produces exactly one show. • For each channel, its name, start year, head office. A channel may broadcast multiple shows. Each show is broadcasted by exactly one channel. • For each user, his/her username, password, and age. A user may rate multiple shows, and a show may be rated by multiple users. Each rating has a score of 0 to 10.
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