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• Consider a mail order company that distributes CDs and tapes at discount prices to its members. • When an order processing clerk receives an order form, she verifies that the sender is a 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.

• Consider a mail order company that distributes CDs and tapes at discount prices to its members. • When an order processing clerk receives an order form, she verifies that the sender is a 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.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Develop the Context Level DFD and DFD Level 0 Diagram for the attached picture

Consider a mail order company that distributes CDs and tapes at discount prices to its members. • When an order processing clerk receives an order form, she verifies that the sender is a 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.
Transcribed Image Text:Consider a mail order company that distributes CDs and tapes at discount prices to its members. • When an order processing clerk receives an order form, she verifies that the sender is a 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.
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