PP Presentation
Shopping model: merchant-independent logic controlling flow of business model
Example shopping models:
Order, Pay, (Deliver 52 times)
(1 month; Order, Deliver) Pay
Bill
Start Transfer $
Order
Complete
Payment
Complete
Event Handlers
4
Event Handlers
Proxy event handlers
translate from
native applications
to shopping model
defined protocols
Abstract API
allows application to
interact with many
different services
in a consistent way
Payment/Delivery/
Other Services
Customer
Merchant
Event Handlers
State
Information