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Technology
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Term Paper
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Topic:

Database Modeling and ER Diagram-Case

Term Paper Instructions:

Module 2 - Case

Database Modeling and ER Diagram

Case Assignment

Community library

You recently got a job offer from a local community library. The manager asks you to develop a database system to track customers and books they check out.

Task 1

Your initial assignment is to create a table for customers. The manager tells you that this table needs to track the following information: all customers' social security number, first and last name, address, city, state and zip code, email, phone number, birth date, and date of applying for a library card. Your task is to first "sketch" a customer table (basically what data items or columns should be included in the table) using the Customer_information table at background section as an example. Your table should contain the following:

  • Column heading include all the attributes that need to be in this table.
  • Populate the table with five records of data

Task 2

Your next task is to design one more table: Customer checkout table to track the books and CDs that the customer has checked out from the library. Customers and Customer Checkout table are related to one another.

The Customer table contains the basic data on each customer and the primary key is customer number. There is one row for each customer.

The Customer Checkout table contains the data for each book. The primary key consists of two pieces of data: Checkout number and customer number. One customer can check out 1 or more books/CDs at a time, but only one customer on a check out order.

Use the templates below to design the two tables.

"Templates" for Table Design

Draw an ER diagram of your complete design for the community library. You can use Visio, or Microsoft word feature to draw the chart, or write down the table schemata and describe the relationships among them.

Include a half page report about your experience with this assignment.

Assignment Expectations

  • Demonstrate understanding of using ER diagram to represent database design.
  • Correctly design tables based on requirement.

 

Term Paper Sample Content Preview:

Database Modeling and ER Diagram-Case
Name
Course
Instructor
Date

Task 1
SSNNameAddressCity StateEmailPhoneBirth dateApplication Date
for a library card545-51-9998Sean PaulsenCA90076CA HYPERLINK "mailto:Spaulsen@%20yahhoo.com" Spaulsen@ yahhoo.com(832) 790-95655/5/19782004589-46-6756Julia WalkerFL33339-8889FL HYPERLINK "mailto:[email protected]" [email protected](3050 789-62489/11/19872006252-93-7598Mark PlattGA 39989-7999GA HYPERLINK "mailto:[email protected]" [email protected](771) 252- 56591/9/19952014627-40-5323Jerome Prince Jr.TX 76992TX HYPERLINK "mailto:[email protected]" [email protected](254)-998-65235/23/19912009602-80-8222Alicia ChambersCA 93534-8592CA HYPERLINK "mailto:[email protected]" [email protected](831)740-25186/15/19952014
Task 2
Customer NameCheckout number Due DateSean Paulsen1289-X15/26/2015Julia Walker3325-M25/30/2015Mark Platt4526-Z35/30/2015Jerome Prince Jr.5489-F41/6/2015Alicia Chambers3478-K54/6/2015
Schemata
Customer (Customer SSSN, Customer Name, Address, Email, Phone, Birth date, Date of application)
Checkout (Customer name, Checkout date)
According to Allen & Terry (2005), the schema represents the relationship between different entities. The case for normalizing and decomposing the tables into related dimension tables makes it easier to identify the relationship. It assumed that the library will focus on the two main tables, which helps to keep track of books and CDs. The concept of primary and foreign keys is essential to understand the relationship between the unique attributes which are then related to each other. It is assumed that entering the items borrowed for each record would waste time, but the checkout table highlights on the benefits of assign the customers unique codes. As such, having more than one table together is similar to normalizing them, and this makes it easier to eliminate the duplicate details (Rob, Coronel, & Crockett, 200...
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