Those are pretty much RPC (remote procedure call), which Kay names as the opposite of message passing. My take on what Kay is saying is that he is in favor of s

Those are pretty much RPC (remote procedure call), which Kay names as the opposite of message passing. My take on what Kay is saying is that he is in favor of something much more like "service oriented architecture" -- but certainly without all the buttloads of cruft that have come to be associated with that phrase.