Classification of the interaction during a payment procedure
On a shop
Physical existence: Face to face
Interaction time: 30~60sec
Transaction time: ~2sec
Service delivery: Synchronous confimation
Rationale of delivery type: Synchronous confimation is very secure against almost all cases of tx
Possible failure handling:
Paid but service undelivered => Sue the merchant
Unpaid but service robbed => Arrest and sue the shoper
Paid and service delivered but payment rollbacked => 1) Sue payment method provider if there is 2) Sue the person on the indentity information of tx if there is
On B2C E-Commerce application
Physical existence: Remote
Interaction time: 0.5~3days in order of stock confirmation and packaging
Transaction time: ~0.5sec because putting a order is just resevation of stocks
Service delivery: Asynchronous confirmation
Rationale of delivery type: Service provider must confirm stock level anyway. (Refunding via normal Tx works as well due to repeated game structure)
Ambiguous Insight: A service with low CAV(Customer Average Value) is able to use FF payment. And via repeated game structure, the service would refund the accidental case via normal slow Tx