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CIS336 Lab 1: Normal Forms and Entity Relationship Diagrams
Introduction
In this exercise, you will analyze a de-normalized data set presented
in the form of a spreadsheet. You will next construct a series of
dependency diagrams, transforming the evolving data model from
First Normal Form (1NF), to Second Normal Form (2NF), and
finally to Third Normal Form (3NF). When the model has reached
3NF, you will construct the Entity Relationship Diagram (ERD)
depicting the logical design of the database. Your ERD will use
Crow‘s Foot notation to denote the relationships between tables.
Sample Exercise, With Solution
Before completing your lab, please review this example problem.
The diagram below is a partial depiction of a business spreadsheet
for a retail store operation. The store sells books. Books have a 13-
digit International Standard Book Number (ISBN), a title, a
publisher, and a unit price. Invoices track sales of books. An
Invoice contains one or many line items, with each line item
reflecting the sale of one or more copies of a specific book. Every
publisher has a company name, and a publisher code.
InvNum ISBN13 InvDateBookTitlePubCodePubNameQtyunitPrice
1022 9781291940336 2015-03-09 MYSQL Functions 1001
Lulu.com 3 4.99
1022 9780321833877 2015-03-09 MySQL, Fifth Edition 1029
Addison-Wesley 5 33.95