For example in HTTP you send a request and receive a response; is there a noun that describes that request-response pair?
I'd thought of "dialog" or "conversation" however those imply multiple request-response pairs, whereas I'm looking for a word that indicates exactly one.
The reason for asking is that I need to name an object which encapsulates the details of both, and RequestResponse seems fairly lame.
RequestResponsePair sounds like it does exactly what it says. And that's invaluable, I find.
In my particular case I consider calling it a Connection. When you send a HTTP request, you're basically establishing a connection with some endpoint.
At least one reason why I dislike it is that similar to Session, one can assume there is some activity at the moment happening, which may or may not be true.
Background: I need to log all interactions with third-party service.
P.S. IMHO, Exchange is the best among others. It sounds more abstract.
