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Q. Draw a Context as well as Level 0 Data Flow Diagram (DFD) of any DVD rental System.

Guidelines / Requirements:

The context level diagram must contain a major process and external entities.

Level 0 diagram must consist of major functions and should work as follows:

 

Ø  There should be 2 streams, or flows of data.

·         The customer request to rent a DVD, system check the availability from DVD store, and then system get the details of customer

·         Bill will be generated on behalf of the detail of DVD and handed over to customer.

     And finally customer gets the DVD after payment in cash.

 
Purposes:

Ensure that you can analyze existing manual system and can draw Data Flow Diagrams of any proposed system.
 

Before Starting you should study and understand:
              Rules for drawing DFDs.
              Differentiate different levels of DFDs.


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