In what cases are synchronous architectures more appropriate
than asynchronous architectures?

Answer Posted / guest

Synchronous architectures are more appropriate than
asynchronous architectures in applications where the sender
and receiver must participate in a message exchange, and the
sender must respond to the receiver in a limited time frame.
An example of this is credit card authorization. The sender
needs a response within a short time to complete a
electronic commerce transaction and to notify a user that
his purchase has been completed.

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