The following describes the customer order processing procedures for Hillary Company.

Upon receiving Customer Order in Sales Department, salesclerk manually prepares two copies of

"Order Confirmation" and two copies of "Shipping Order" $($Shipping Order contains product data such

as number, name, the number of units ordered, and the location of the inventory in warehouse$).$

The salesclerk signs the documents and sends a copy of the "Order Confirmation" to the customer and

a copy of the "Shipping Order" to the Warehouse.

Then, the salesclerk attaches a copy of "Order Confirmation" and "Shipping Order" to the Customer

Order and sends them to the Accounts Receivable Department. They are filed by number until the

goods are shipped to customers.

In Warehouse, after the goods are picked and are shipped, shipping data are entered into the computer.

Computer updates Inventory Master file which is on a magnetic disk and prints Shipping Notice in two

copies $-$ a copy is sent to the Accounts Receivable Department and the other copy is filed with

"Shipping Order" by date in Warehouse.

In Accounts Receivable Department, the billing clerk upon receiving Shipping Notice from

Warehouse, compares the customer order to the Shipping Notice, enters the data into computer to

update accounts receivable master file on magnetic disk, and prepares two copies of Sales Invoice

through computer. One copy of the Sales Invoice is mailed to the customer, and the other copy is filed

in Accounts Receivable Department with the "Shipping Notice", "Order Confirmation", "Shipping

Order", and "Customer Order" and by date.

Requirements:

a$.$ Prepare a system flowchart for the customer order processing procedures described above

b$.$ Prepare a dataflow diagram for the customer order processing procedures described above