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CMSC243 Systems Analysis and Design

Course Final Project (17 points)

Due Dec 14, 2015 midnight

You must complete and submit the course project before the deadline to

receive a passing grade for this course.

For the business requirements described below, please prepare:

 (2 points) Business Profile.

 (5 points) ALL levels of Data Flow Diagrams.

 (2 points) Memo/statement to provide a brief description of each process in your data

flow diagrams.

 (3 points) the Class Diagram

 (3 points) the Use Case Diagram

 (2 points) Entity Relationship Diagram.

Please make and document reasonable assumptions, if necessary.

Business Requirements:

XYZ Company sells computer equipment to federal government agencies. When a federal agency needs

to purchase computer equipment from XYZ, it issues a purchase order against a standing contract

previously negotiated with the company. XYZ holds several standing contracts with various federal

agencies. When a purchase order is received by XYZ’s contracting office, the contract number

referenced on the purchase order is entered into the contract database. Using information from the

database, the contracting officer reviews the terms and conditions of the contract and determines

whether the purchase order is valid. The purchase order is valid if the contract has not expired, the type

of equipment ordered is listed on the contract, and the total cost of the equipment does not exceed the

predetermined limit. If the purchase order is not valid, the contracting officer returns the purchase

order back to the requesting agency with a letter explaining why the purchase order cannot be filled,

and a copy of the letter is filed. If the purchase order is valid, the contracting officer enters the purchase

order number into the contract database and marks the order as outstanding. The purchase order is

then sent to the order filling department. At the order filling department, the inventory is checked for

each item ordered. If any items are not in stock, the order filling department creates a report listing the

items not in stock and attaches it to the purchase order. All purchase orders are forwarded to the

warehouse where the items in stock are pulled from the shelves and shipped to the customer. The

warehouse then attaches to the purchase order a copy of the shipping bill listing the items shipped and

sends it to the contracting officer. If all items were shipped, the contracting officer closes the

outstanding purchase order record in the database. The purchase order, shipping bill, and exception

report (if any), are then filed in the contract office.