The sales department at Windways receives purchase orders from customers (contractors) for fans. The sales clerk enters the customer name into the computer. The computer reads the account receivable master file and displays customer information similar to that entered. The sales clerk finds the customer’s ID number and prepares a sales order. The sales clerk then forwards the sales order to accounts receivable. A clerk in accounts receivable enters the customer ID number on the computer. The computer again reads the accounts receivable master file and displays the credit status of this customer on the terminal in accounts receivable. The Accounts Receivable clerk then approves the sales order by initialing the appropriate box. The Accounts Receivable clerk forwards one copy of the sales order to shipping and forwards the original back to sales. The sales clerk then prepares a vendor acknowledgement and sends it to the customer. The sales clerk then files the approved sales order in a Sales Order File.

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1,2,9,10,4,5,13,11,12,14,15,16,6,7,8

The sales department at Windways receives purchase orders from customers (contractors) for fans.

The sales clerk enters the customer name into the computer.

The computer reads the account receivable master file

and displays customer information similar to that entered.

The sales clerk finds the customer’s ID number

and (the sales clerk) prepares a sales order.

The sales clerk then forwards the sales order to accounts receivable.

A clerk in accounts receivable enters the customer ID number on the computer.

The computer again reads the accounts receivable master file

and displays the credit status of this customer on the terminal in accounts receivable.

The Accounts Receivable clerk then approves the sales order by initialing the appropriate box.

The Accounts Receivable clerk forwards one copy of the sales order to shipping

and forwards the original back to sales.

The sales clerk then prepares a vendor acknowledgement

and sends it to the customer.

The sales clerk then files the approved sales order in a Sales Order File.

This is an un-numbered list of requirements with each requirement on a separate line. The order is the same as the original narrative but the requirements have been “color coded”.

1,2,9,10,3,4,5,13,11,12,14,15,16,6,7,8

This is a numbered list of requirements with each requirement on a separate line. The requirements have been grouped by entity prior to numbering (i.e., a Table of Activities)The original order is given at the bottom (i.e., an Order of Activities).

1. The sales department at Windways receives purchase orders from customers (contractors) for fans.

2. The sales clerk enters the customer name into the computer.

3. The computer reads the account receivable master file

4. and displays customer information similar to that entered.

5. The sales clerk finds the customer’s ID number

6. and (the sales clerk) prepares a sales order.

7. The sales clerk then forwards the sales order to accounts receivable.

8. A clerk in accounts receivable enters the customer ID number on the computer.

9. The computer again reads the accounts receivable master file

10.and displays the credit status of this customer on the terminal in accounts receivable.

11.The Accounts Receivable clerk then approves the sales order by initialing the appropriate box.

12.The Accounts Receivable clerk forwards one copy of the sales order to shipping

13.and forwards the original back to sales.

14.The sales clerk then prepares a vendor acknowledgement

15.and sends it to the customer.

16.The sales clerk then files the approved sales order in a Sales Order File.

This is also a numbered list of requirements with each requirement on a separate line. The requirements have NOT been reordered so no Order of Activities is necessary (this alternative may make the logical DFD easier but at the same time, complicate the construction of the physical DFD)

Sales

Computer

AccountsReceivable

Customer

Shipping

1,2,9,10,3,4,5,13,11,12,14,15,16,6,7,8

43 6

14

1

POs 2

CustomerName

A/R master

SO File

9

CustomerInfo10

8

5

Sales Order13

CustomerID

11

12CreditStatus

16

Sales Order

7

VendorAck.

Sales Order 15

1.0Prepare

S/O

2.0Approve

S/O

3.0PrepareVend. Ack.

Customer

Shipping

1

POs

A/R master

SO File

9

1,2,9,10,3,4,5,13,11,12,14,15,16,6,7,8

11 Sales Order 15

8

7

VendorAck.