Green Pond Nursery Supply (GPNS) is a garden center wholesaler in eastern Pennsylvania that sells and distributes a wide range of garden products and equipment including organic fertilizers, premium flower and grass seeds, organic pesticides, and garden spreaders. GPNS’s customers are primarily small garden centers and landscape companies in the  Mid-Atlantic states. Sales are on credit. GPNS’s current information system includes manual procedures supported by independent (nonnetworked) PCs in each department. Communications between departments are entirely through hard-copy documents. Recently, GPNS has been receiving complaints from suppliers regarding payment errors. Management believes that these complaints stem, in part, from their antiquated computer system. You have been hired to assess GPNS’s procedures and internal controls. The following is a description of GPNS’s expenditure cycle. The purchasing agent receives an inventory status report from the inventory control department, which identifies the items that need to be reordered. The agent selects the suppliers, enters this information in to the computer terminal to create a digital purchase order, and then prints three hard copies of the purchase order. He sends one copy to the supplier; one copy to the AP department, where it is filed temporarily, and files the third copy in the purchasing department. When the goods are received, the receiving department inspects and verifies them using the packing slip, which is attached to the goods. The receiving clerk manually prepares two hard copies of a receiving report. One copy accompanies the goods to the warehouse for storage. The receiving clerk sends the second copy to the purchasing agent who closes the open purchase order. The purchase agent then forwards the receiving report to the inventory control clerk. The inventory control clerk receives the receiving report and updates the inventory subsidiary. At the close of business, the clerk prepares an inventory  summary, which he sends to the general ledger clerk. The AP clerk receives the supplier’s invoice and reconciles it with the purchase order in the temporary file. From her computer terminal, the clerk records the purchase in the purchases journal and records the liability by adding a record to the AP subsidiary ledger. The purchases order and invoice are then filed in the department. Each day, the AP clerk visually searches the AP subsidiary ledger from her terminal for invoices that are due to be paid. The clerk prepares the check and records it in the digital check register. The negotiable portion of the check is mailed to the vendor, and a check copy is filed. The clerk then closes the liability in the AP subsidiary ledger and prepares a journal voucher, which she sends to the general ledger clerk. Upon receipt of the inventory summary and journal voucher, the general ledger clerk updates the inventory control, AP control, and cash accounts.

Required
a. Create a data flow diagram of the current system.
b. Create a system flowchart of the existing system.
c. Analyze the physical internal control weaknesses in the system.
d. Prepare a system flowchart of a redesigned computer-based system that resolves the control weaknesses that you identified. explain your solution.