Week 5

By mehersannidhi

write a data dictionary entry for aprocess from the diagram 0 dfd that you drew in week4

use the following headings:

* process name
* process number
* purpose
* input data flows
* output data flows
* process description
* notes

1. Process Name:- the process name is nothing but as it appears on the dfd’s.

In the o dfd the process name is Accept order.It takes order from the customer.

2.Process number:- The process number is nothing but it identifies the process and indicates relationships.The process number for accept order is 1.0.

3.Purpose:-It is nothing but it accepts the order and order details from the customer and it processes the order and then it performs.

4.Input dataflows:-The standard DFD names for the input data flows to the entity.The input dataflows is order details.The system takes the order details from the customer and checks whether the dvd is there or not.

5.output dataflows:-The standard DFD names for the data flows leaving the entity.The output dataflows is order.The process system takes the order from the customer and performs the generating dvd process.

6.Process Description:-The process description includes the input and output data flows.The process description also documents the steps and the logic of the system.This process description includes structured english, decisiontablesand decision trees.

The structured english is nothing but it looks like programming statements.The structured english for the process name is get new order from customer if order confirm then generate the dvd else nodvd is available end.

THE DATA DICTIONARY ENTRY FOR SECOND ENTITY:

1. Process name:-The process name for the second entity is CHECK DVD.In this it checks whether the dvd is there or not.
2. Process number:-The process number for check dvd is 2.0.
3. Purpose:-The purpose is it takes the order from the customer ,generates the process and checks whether the dvd is there or not.
4. Input data flows:-The DFD names for the input data flows to the entity.In this the input dataflows for the check dvd is status message.It takes the order from the customer and if confirm the order then it gives status message.
5. Output data flows:-The DFD names for the output data flows is order details,confirm order,customer details and modify the steps.

Process description:-The process description is nothing but it gives brief description of the record.In the process description the higher level process contains a lower level processes.The lower level processes may in turn be further decomposed into sub lower level DFD’s.

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