Abstract: A system includes a single common graphical user interface for a network of home appliances, comprising a communication window and a task window, both of which are connected to the network. A communication window includes agent utterance bubbles associated with a software agent, and user utterance bubbles associated with a user of the appliances. The agent utterance bubbles display agent utterances, and the user utterance bubbles display user utterances to be selected by the user in response to the agent utterances. A task window includes a selection window for selecting tasks and appliances, and an application program interface for a selected task and appliance. A network of home appliances includes several home appliances connected to an appliance controller by a network. The appliance controller includes the single common graphical user interface.