The biggest challenge is when a response to a partner (for example, AutoLease) requires that all receiving partners (AllSecur and AXA Insurance) respond with an acknowledgement or error receipt (message), but one partner fails to send one to the trusted third party (Acme Insurance Brokering Services). The TTP might wait indefinitely for a response, eventually failing to reply to the initiating partner (AutoLease).
Depending on the business rules of a particular business transaction, it is possible that, before the initiating partner can continue with the next business transaction, it needs to know whether the previous transaction was successful. This forces the initiating partner to build ...
