Design an ER diagram for keeping track of information about votes taken in the U.S. House of Representatives during the current two-year congressional session.The database needs to keep track of each U.S. STATE’s Name (e.g., Texas, New York, California) and includes the Region of the state (whose domain is {Northeast, Midwest, Southeast, Southwest, West}).Each CONGRESSPERSON in the House of Representatives is described by their Name, and includes the District represented, the StartDate when they were first elected, and the political Party they belong to (whose domain is {Republican Democrat, Independent, Other}).The database keeps track of each BILL (i.e., proposed law), and includes the BillName, the DateOfVote on the bill, whether the bill PassedOrFailed (whose domain is {YES,NO}), and the Sponsor (the congressperson(s) who sponsored--i.e., proposed--the bill).The database keeps track how each congressperson voted on each bill (domain of vote attribute is {Yes, No, Abstain, Absent}).

ER diagram: An ER (Entity-Relationship) diagram is a type of data modeling tool used to illustrate…

Answered: Design an ER diagram for keeping track…

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

Problem 1PE

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Design an ER diagram for keeping track of information about votes taken in the U.S. House of Representatives during the current two-year congressional session.

The database needs to keep track of each U.S. STATE’s Name (e.g., Texas, New York, California) and includes the Region of the state (whose domain is {Northeast, Midwest, Southeast, Southwest, West}).
Each CONGRESSPERSON in the House of Representatives is described by their Name, and includes the District represented, the StartDate when they were first elected, and the political Party they belong to (whose domain is {Republican Democrat, Independent, Other}).
The database keeps track of each BILL (i.e., proposed law), and includes the BillName, the DateOfVote on the bill, whether the bill PassedOrFailed (whose domain is {YES,NO}), and the Sponsor (the congressperson(s) who sponsored--i.e., proposed--the bill).
The database keeps track how each congressperson voted on each bill (domain of vote attribute is {Yes, No, Abstain, Absent}).

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Step 1

ER diagram:

An ER (Entity-Relationship) diagram is a type of data modeling tool used to illustrate the relationships between different entities in a system or organization. It is a graphical representation of entities, their attributes, and the relationships among them.
In an ER diagram, entities are represented as rectangles, attributes are represented as ovals, and relationships are represented as diamonds. The relationships are typically labeled to indicate the nature of the connection between the entities.
ER diagrams are commonly used in software engineering and database design to visualize and communicate the relationships between various components of a system. They can help to identify and resolve issues in system design, such as data redundancy or missing data relationships. Additionally, ER diagrams can aid in the implementation of a database schema by providing a blueprint for how the data should be organized and structured.

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