. . . "Specifically, the terminal devices 11 and 12 can be implemented, for example, by a computer system, such as a personal computer or a work station, an electric home appliance, such as a computer-incorporating television set, or a PDA. [0076] The collaboration system in FIG. 1 can be used with an arrangement whereby, for example, a customer and a company agent perform a cooperative operation in a cu" . . . .