Create a Context DFD and a level zero logical DFD for the fo

Create a Context DFD and a level zero logical DFD for the following Order Fulfillment System scenario within the Order Fulfillment Department: A CUSTOMER submits a PURCHASE ORDER. The FULFILL ORDER process acts on the PURCHASE ORDER by either sending an ORDER REJECT NOTICE back to the CUSTOMER if the CUSTOMER has bad credit, or sending a FULFILLMENT SLIP to the WAREHOUSE Department. When a COMPLETED ORDER NOTICE is received from the WAREHOUSE Department signifying they have shipped the product, the CREATE INVOICE process generates an INVOICE and outputs it to both the CUSTOMER (by mail) and the ACCOUNTS RECEIVABLE data store. When a CUSTOMER makes a PAYMENT it is processed by APPLY PAYMENT. This requires INVOICE DETAIL input from the ACCOUNTS RECEIVABLE data store along with PAYMENT DOCUMENTATION (from the customer). APPLY PAYMENT outputs PAYMENT DETAIL back into the ACCOUNTS RECEIVABLE store and outputs BANK DEPOSIT SLIP to the BANK, and CASH RECEIPTS ENTRY to the ACCOUNTING Department.

Solution

A CUSTOMER submits a PURCHASE ORDER. The FULFILL ORDER process acts on the PURCHASE ORDER by either sending an ORDER REJECT NOTICE back to the CUSTOMER if the CUSTOMER has bad credit, or sending a FULFILLMENT SLIP to the WAREHOUSE Department.

When a COMPLETED ORDER NOTICE is received from the WAREHOUSE Department signifying they have shipped the product, the CREATE INVOICE process generates an INVOICE and outputs it to both the CUSTOMER (by mail) and the ACCOUNTS RECEIVABLE data store.

When a CUSTOMER makes a PAYMENT it is processed by APPLY PAYMENT. This requires INVOICE DETAIL input from the ACCOUNTS RECEIVABLE data store along with PAYMENT DOCUMENTATION (from the customer). APPLY PAYMENT outputs PAYMENT DETAIL back into the ACCOUNTS RECEIVABLE store and outputs BANK DEPOSIT SLIP to the BANK, and CASH RECEIPTS ENTRY to the ACCOUNTING Department.