Thamesa Sdn Bhd is a 15-year-old furniture shop in Petaling Jaya, Selangor with two branches. They want to build a database to store product information and implement a membership system to increase sales. The database aims to reduce data redundancy and allow tracking of stock and member discounts more easily given the large size of furniture items. The document outlines the system objectives, business rules, ER diagram, relational schema, and normalization steps to 3NF for the proposed database system.

1. Thamesa Sdn Bhd
Database

2. Members
• Md. Shahin Alam (WES140701)
• Mahmud Hasan Khan (WES140702)
• Nur Nasuha Binti Mohd Daud (WES140028)
• Hatem Hussain (WEA140702)

3. introduction
• Thamesa Sdn Bhd is a furniture shop which located at Petaling
Jaya,Selangor.
• It’s been operating since 2000 for nearly 15 years.
• It’s a large size shop.
• It has two branch's.

4. Problem Analysis
• Due to the immobility of those big furniture, it makes the
stock/model checking procedure become troublesome.
• A system that will record down all the details about every product
that they are selling.
• Implement a membership system which different membership
provide different discount on products.

5. System Objectives
• To build a user friendly information system forThamesa Sdn Bhd.
• To store the products’ information.
• To suggest a membership system toThamesa Sdn Bhd to increase
the sales.
• To reduce the data redundancy in the existing data.

6. Business Rules
1. Each customer can have one or more invoice. One invoice can
have one and only one customer.
2. Each invoice consists of one or many products. One product has
one and only one invoice.
3. Each order can have one or many products.

7. Entity-relationship diagram

8. Relational Schema Diagram
• Customer
• Invoice
• Product
• Order
CUS_ID CUS_NAME CUS_
CONTACT
CUS_
COMPANY
CUS_
ADDRESS
MEMS_ID MEMS_
DATE
MEMC_ID MEMC_
DESC
MEMC_
DURATION
MEMC_
DISCOUNT
INV_ID INV_DATE INV_
PAYTYPE
INV_
DELIVER
SALE_ID SALE_DAT
E
SALE_PAY PRO_ID CUS_ID
PRO_ID PRO_NAME PRO_COLOR PRO_LENGTH PRO_WIDTH PRO_HEIGHT PRO_WEIGHT PRO_PRICE PRO_
QUANTITY
ORDER_ID ORDER_DATE ORDER_
QUANTITY
VENDOR_ID VENDOR_NAME VENDOR_
CONTACT
VENDOR_
ADDRESS
PRO_ID

9. Normalization (2NF)

10. Normalization(3NF)

11. Normalization(3NF)

12. Entity-Relationship Diagram after Normalization

13. RelationalTable

14. ThankYou
Q&A