Nazari Shirehjini, A.A.A.A.Nazari ShirehjiniHellenschmidt, M.M.HellenschmidtKirste, T.T.Kirste2022-03-102022-03-102004https://publica.fraunhofer.de/handle/publica/34564510.1145/1031419.1031435This paper describes the user interface and interaction model of a system for Personal Environment Control - the PECo System. The Personal Environment Controller (PECo) is a digital assistant system that provides the user with a unified facility for organizing and accessing the different media repositories at his disposal and for direct manipulation of his physical environment (projectors, TV sets, hi-fi systems, Lights, shutters, etc.).en3d visualizationambient intelligencemultimedia appliancedirect manipulation006conference paper