Draw the context and level 0 DFD

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Presentation transcript:

Draw the context and level 0 DFD Draw the context and level 0 DFD. Bebop Records is a mail order company that distributes CDs and tapes at discount prices to record club members. When an order-processing clerk receives an order form, she verifies that the sender is a club member by checking the MEMBER FILE. If the sender is not a member, the clerk returns the order along with a membership application form. If the customer is a member, the clerk verifies the order item data by checking the ITEM FILE. Then the clerk enters the order data and saves it to the DAIILY ORDERS FILE. At the same time the clerk also prints an invoice and shipping list for each order, which are forwarded to the ORDER FULFILLMENT DEPARTMENT for processing there.

BEBOP CONTEXT DIAGRAM Shipping invoice Order Process Customer Order Fulfillment Dept. Order form Application 1

Bebop Level 0 Club Member Info Customer 1 Order Form A Member File Verify Customer Application Customer Order 4 2 Order Item Info Print Invoice Item File B Verify Order Valid Customer Order Shipping Invoice 3 Order Fulfillment Dept. Order Daily Order File Enter Order C 2