Reference no: EM13489923

1. NORMALIZATION OF DATA

A table of data for a library is shown in the table for Problem 9. Normalize these data into the third normal form, preparing them for use in a relational database environment. The library's computer is programmed to compute the due date to be 14 days after the checkout date. Document the steps necessary to normalize the data similar to the procedures found in the chapter. Index any fields necessary, and show how the databases are related.

STUDENT ID NUMBER	STUDENT FIRST NAME	STUDENT LAST NAME	NUMBER OF BOOKS OUT	BOOK CALL NO	BOOK TITLE	DATE OUT	DUE DATE
678-98-4567	Amy	Baker	4	hf351.j6	Avalanches	09-02-09	09-16-09
678-98-4567	Amy	Baker	4	hf878.k3	Tornadoes	09-02-09	09-16-09
244-23-2348	Ramesh	Sunder	1	i835.123	Politics	09-02-09	09-16-09
398-34-8793	James	Talley	3	k987.d98	Sports	09-02-09	09-16-09
398-34-8793	James	Talley	3	d879.39	Legal Rights	09-02-09	09-16-09
678-98-4567	Amy	Baker	4	p987.t87	Earthquakes	09-03-09	09-17-09
244-23-2348	Ramesh	Sunder	1	q875.i76	Past Heroes	09-03-09	09-17-09

2. DEFINING ENTITIES AND DATE MODELING-FIXED ASSET PROCEDURES

 The business rules that constitute the fixed asset procedures for the Safe Buy Grocery Stores chain are similar at all the store locations. The store manager at each location is responsible for identifying needed fixed assets and for selecting the vendor. Freezers, refrigerators, delivery vans, and store shelving are examples of fixed asset purchases. Once the need has been identified, each store follows the following procedures.

 The manager creates a purchase order, which is sent to the supplier. The supplier delivers the asset to the receiving clerk, who prepares a receiving report. Each week, the fixed asset department clerk reviews the fixed asset receiving report summary and creates a fixed asset inventory record for each receipt. The fixed asset clerk maintains the inventory records and depreciation schedules. The vendor subsequently submits an invoice to the AP department clerk, who creates an invoice record. The clerk reconciles the invoice against the receiving report and purchase order and then creates a payment obligation to be paid at a future date, depending on the terms of trade. On the due date, a check is automatically prepared and sent to the vendor, and the payment is recorded in the check register. At the end of each day, a payment summary is sent to the AP manager for review.

Required

Assume that the manual system described is to be automated using a relational database system. Perform the following tasks. You may need to make assumptions about how certain automated activities will be performed.

a. List all candidate entities in the procedures described.

b. Identify the valid entities, and explain why the rejected entities should no be modeled.

c. Create a data model of the process showing entity associations.

d. Create a fully attributed model by adding primary keys, foreign keys, and data attributes. Normalize the model.