The present invention provides for a channel model capable of generating a runtime communication channel with pluggable modular channel components. These channel components implement one of a set of standard interfaces that allow processing details of communication semantics between components to be represented in a polymorphic way. A message and corresponding communication semantics are recursively passed through the channel components using the standard interface, thereby abstracting other modules and components from specific implementation details of how the communication semantics are performed. The message may then be sent to the next appropriate module for further processing, or the processing may be completed at that particular component or module. Note also that the message can also be de-multiplexed on the service side in a similar fashion as that described above.