Diagram Technical Details Security System Requirements DIAGRAM This diagram indicates how i-PayOnline handles the payment components of online purchasing. Step 1 The buyer purchases an item at an online store or portal by means of a credit card or purchasing card. Step 2 The web application submits a request for authorisation via i-PayOnline to the acquiring bank. Line Item Details (LID) are submitted if a purchasing card is used. Step 3 An order is submitted to the supplier. Step 4 The supplier ships the goods. Step 5 The supplier requests payment through the i-PayOnline transaction management interface.