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Software Fortresses: Modeling Enterprise Architectures by Janet Van Sickler, Roger Sessions

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6.2. Implementation of Asynchronous Drawbridges

Knowing that asynchronous drawbridges use message queues is only part of the problem. We still have to decide on these issues:

  • On the donor fortress side, what, exactly, will be technically responsible for inserting messages into the queue?

  • How will other workers inside the donor fortress communicate with the message inserter?

  • On the recipient fortress side, what, exactly, will be technically responsible for receiving the message? We know a guard will receive the message (because the message is being transferred across a trust boundary), but how will that guard be implemented?

  • How will other workers inside the recipient fortress receive their marching orders from the guard?

On the donor side, the envoy ...

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