This show will cover some very primitive and basic systems flowcharts to give you an overview understanding of what can be drawn and what can be shown in a systems flowchart. These flowcharts are not trying to show actual business processing, but rather show the concepts of data flow.
Note that these flowcharts deal with the processing side, not with routine maintenance to make A, C and D to the master file.
Very simple order entry system.
The order is keyed in and used to obtain and update information in the inventory and customer master files. An order header and an order detail file are created. An exception report and an order register are produced as well as a picking slip for the warehouse.
Note that at this point the committed field on the inventory file is being updated. Until the order has been assembled, the amount is only committed.
We are now making changes from what is actually packed to ship. The warehouse has sent what was actually sent on the order. The order files will reflect these changes. Back orders will go to the back order file and they will also be reflected in the order files. The billing program will prepare the invoice and the information will be sent to the accounts receivable file.
The inventory and vendor files are analyzed to determine what should be purchased. These suggestions can be changed by management to consider available finances, sales being planned etc. The purchase order information is then sent to the P/O register and update and the P/O is sent to the vendor.
The update then makes actual changes to the inventory and vendor files and produces the open P/O file and the register.
The receipts are keyed and compared against the purchase order for completeness and to assure that what was received was in fact ordered.
The receipts are then used to update the inventory file, the vendor file and the open P/O file. The receipts register is printed and the receipts are sent to accounts payable.
Accounts Payable - standalone system. Shows inventory entry and the updating of the files caused by the invoice.
Interactive processing can change the cash requirements until finally an established set are established based on cash available and priorities in payment etc.