1. A method for communication between a first computer operating in a first object-oriented run-time environment and a second computer operating in a second, different object-oriented run-time environment, the method comprising: sending a first message with an object identification and an action identification from the first computer to the second computer; identifying an object in the second run-time environment according to the object identification; determining an action representation of an action, according to the action identification, in the second run-time environment for the identified object; and executing the action using the action representation.