@article {16224, title = {Scheduling home control devices: design issues and usability evaluation of four touchscreen interfaces}, journal = {International Journal of Man-Machine Studies}, volume = {36}, year = {1992}, month = {1992/03//}, pages = {375 - 393}, abstract = {This article describes four different user interfaces supporting scheduling two-state (ON/OFF) devices over time periods ranging from minutes to days. The touchscreen-based user interfaces including a digital 12-h clock, 24-h linear and 24-h dial prototypes are described and compared on a feature by feature basis. A formative usability test with 14 subjects, feedback from more than 30 reviewers, and the flexibility to add functions favour the 24-h linear version.}, isbn = {0020-7373}, doi = {10.1016/0020-7373(92)90040-R}, url = {http://www.sciencedirect.com/science/article/pii/002073739290040R}, author = {Plaisant, Catherine and Shneiderman, Ben} }