For each good there is a quantity on hand and a desired quantity on hand in the

inventory database. When the quantity on hand falls below the desired quantity on

hand, a screen will automatically pop up in the purchasing manager's computer,

alerting the manager to reorder the goods. The manager can approve the reordering

of goods simply by checking the acceptance box. When the acceptance box is

checked, the purchase order and inventory databases are updated. In addition, the

vendor is notified electronically through a transmission from the purchasing system.

This transmission takes the form of an electronic purchase order.

When the goods are received from the vendor, a printout of the authorized

purchase order is attached. The receiving department keys in the purchase order

number to retrieve the electronic authorization from the purchasing database.

Accepted goods are recorded as received in the purchasing and inventory databases

and bar codes are automatically printed in the receiving department, to label the

crates$/$boxes received. The goods are stored in the warehouse. Upon acceptance,

accounts payable balances are updated.

INSTRUCTIONS:

$1.$ Prepare a table of entities and activities based on the Speedy Grocers, Inc.

narrative.

$2.$ Construct a context diagram for the Speedy Grocers, Inc.

$3.$ Construct a level $0$ DFD for Speedy Grocers, Inc.