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We describe three different user interfaces supporting the scheduling of home-control devices (such as VCR, air conditioning or furnace) over time periods ranging from minutes to days. The touchscreen-based user interfaces include a 12-hour clock, 24-hour dial and 24-hour linear prototypes. They are demonstrated on a PC-AT equipped with a touchscreen. User reactions were collected during an informal usability test. The reviewers' feedback as well as the flexibility to add functionalities favor the linear representation. |