Essay about Analysist Week3

767 Words Sep 12th, 2013 4 Pages
2. Again, review the DFDs you developed for the Petrie's Electronics case. (I have placed the level 1 diagrams in the Project Workbook - Week 3 folder in doc sharing, use your homework solution for the Record Customer Activities level 1) .

Use these DFDs to identify the attributes of each of the six entities listed in this case, using Figure PE Figure 7-1; I have also placed the Visio diagram in doc sharing, Project Workbook - Week 4).

Write an unambiguous definition for each attribute. Then, redraw PE Figure 7-1 by placing the six (and additional) entities in this case on the diagram along with their associated attributes.

List at least 2 attributes for each of the six entities and describe then in a short sentence or bullet
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COUPON ID: COUPON_ID DISCOUNT CODE OFFERED BY THE COMPANY: These coupons are for special customers who has bought stuff from the company and received points. These coupons are special because it also helps the customers to save money in the future.
CUSTOMER ID: ONLINE_NAME- LOG IN OR USER NAME: This system can hel[p a customer to save time and money because all they have to do is go on the computer and click to buy something. This is a great way to help customer and also keep them in mind for specials because they are in the company system with their log name.
SERVICES ID: STORE_JOB- -STORE PROVIDING SERVICES: Having employees that can do their job and extra is a great thing, for example they can not only sell items they can install them and put them together.
TRANSACTION ID: TRANSACTION_TYPE_ TYPE OF TRANSACTION BEING PRERFORMED: Having more than one item sold is a good thing. Having a transaction id can help the customer with their many orders.
PRODUCT ID: PRODUCT_QUANTITY-AMOUNT OF PRODUCTS NEEDED: Products are very important because if you didn’t have a product to sell there wouldn’t be a business. Having a need for products is a good thing for a business.

4. Using your answer to Question 3, draw the relationships between
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