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DATA FLOW DIAGRAM FOR

Explanation of Components of the DFD for the Proposed System

Level 0

ENTITIES INVOLVED IN PROPSED SYSTEM (LEVEL 0)

Stock – Sends order information and receives the delivery note, keep up-to-date inventory status and creates report.

Supplier – Supplies the ordered items to the company, sends a catalog and the delivery note, and receives payments.

Sales – This entity performs the sales of an item and receives the order information to be sent to accounting.

Customer –Request item information and receives reply.

Management – Gives authorization for ordering items and receives reports.

Accounts – Makes payment to supplier and employee, creates reports such as sales, damaged goods.

Employee – This entity is the one that performs work duties such as sales.

DATA FLOWS IN PROPSED SYSTEM (LEVEL 0)

Authorization – This is permission granted for the ordering of stocks.

Accounting Transactions – This are the transactions that the carried out by the Accounts entity e.g. payments.

Sales Report – This is a report of all the items that are sold by the company.

Sales Information – Information such as code of item, description, price etc.

Delivery Note –This is a form of receipt that the company receives from the warehouse stating all the items that they ordered with description and amount and the date delivered.

Catalog – This is all the items that are available at the warehouse

Order Information – Information about the item ordered, customer who ordered the item.

Supply Information – This is information about all the items that are available for

ordering at the warehouse.

Inventory Status – This is the amount of items that are in and out of stock.

Inventory Report – A report stating all the items that are in stock.

Receipt – This is a receipt showing payments of items.

Items and Promotions Info – This is information about items necessary promotions such as discounts.



 

 

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