Context, Dfd & Flowchart Essay

2324 Words Nov 18th, 2014 10 Pages
1) Draw a context diagram for the expenditure cycle for AB Hi-Fi


Purchase Requisition

Quote Purchase Order


AB Hi-Fi Expenditure cycle


Supplier Payment Details

Items Delivered Delivery Docket Accepts / Rejects Delivery

Delivery Driver

Prepare a level 0 DFD for the expenditure cycle at AB Hi-Fi

Purchase Clerk
Monitors stock levels Completed Purchase Requisition Inventory Purchase Requisition Approved Purchase Requisition

Purchase Manager
1.0 Demand for Goods

Commence ordering on receipt of approved purchase requisition

2.0 OrderingG oods

Requests list of approved suppliers

Purchase Clerk

Quotes sent

Opens Requisition

Requests for quotes

Purchase Requisition
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PO number invalid / status of PO 'closed', computer displays error message and warehouse clerk will refuse to take delivery of items.

Retreives and displays PO data without item quantities

If PO number valid and unpaid,; OK to make payment against this PO; asks if AP Clerk wants a printed PO.

If PO number invalid / status of PO 'paid', computer displays error message

After successful transfer to payments file to the bank, computer prints report of payments made and then updates AP and GL data stores

Good Received Report Goods Receiving Clerk Accounts Payable Clerk Retreives goods received report from awaiting folder Works through line-by-line and inputs quantities received from each item from the goods received report Requests computer to print the PO Awaiting Invoice Folder Payments made Report Updated Accounts Payable Data Store Updated General Ledger Data

Computer requests input of a valid supplier number & other data to produce a PO
Log on to computer and open purchase requisition
Purchase Order Mark requisition as complete by ticking on a check box

Requests computer to print the goods received PO Data Store
Retreives details of items ordered and supplier details

Accounts Payable Clerk

Once all items accounted for on the goods received report, tick a box on the computer to indicate that goods received report input is complete Purchase Order transmitted via email to:

PO Data Store
Retreives list

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