This Data Flow Diagram (DFD) for an Ordering System is designed to visually model the core processes of customer ordering, payment, and inventory fulfillment. It is a vital analytical tool for system analysts, logistics managers, and e-commerce platform developers. The user begins the workflow when the Customer places an Order, which triggers the first process to Create Invoice and generate a Picking list for the Warehouse. The second process creates an invoice based on the Completed order from the Warehouse, which the Customer uses to provide Payment. The final process, Apply Payment, distributes related information as a Bank deposit and Commission to the Sales Dept and Accounting. The resulting DFD provides a clear, documented view of the system's operational logic, ensuring seamless order fulfillment and accurate financial reconciliation.
