Die Anfrage
“Create a level-one online checkout data flow diagram: a customer places an order, customer and order databases exchange data with the order process, a payment gateway approves payment, a carrier receives shipping details, inventory is updated, and the customer receives status.”
Dann probieren SieAdd an order-cancellation process.Add a refund status flow from the payment gateway.
Was diese Zeichnung zeigt
Die dahinterstehenden Entscheidungen verstehen.
01
Using flowchart shapes to represent DFD components
02
Bidirectional arrows for read/write operations on data stores
03
Including status notification to customer
When designing an e-commerce checkout subsystem to identify major data flows and interactions.