3. The dialog system of claim 2 , wherein the plan engine is configured to interact with a process engine that executes a process script in connection with the process, the process script including a set of atomic process activities and corresponding order constraints of the atomic process activities, the set of atomic process activities being sub-activities of the process.
3. The dialog system of claim 2 , wherein the plan engine is configured to interact with a process engine that executes a process script in connection with the process, the process script including a set of atomic process activities and corresponding order constraints of the atomic process activities, the set of atomic process activities being sub-activities of the process. 11. The dialog system of claim 3 , wherein the process script conforms to a standard XML-based language designed to accomplish tasks across multiple organizations in a distributed computing environment using a combination of Web services.