“What are the design choices?”
We believe event notifications across the Internet are necessarily identifiable as messages
- ISEN design space is slightly larger than IS messages
Message delivery initiated by source or sink
- Polling vs. Interrupts
- often conflated with non-blocking vs. blocking semantics
- often conflated with which-side-establishes-a-connection
End-to-end delivery or via mediators (queues)
- often conflated with “real time” vs. deferred
Reliable delivery provided by or above transport