The Wizard of Oz (1987 musical) Out"; "Ding Dong! The Witch Is Dead"). The Wicked Witch of the West (who resembles Miss Gulch) arrives to claim her sister's magic ruby slippers and vows to avenge her death. Glinda has already put the slippers on Dorothy's feet, further infuriating the witch. Dorothy wants to go home to Kansas. The Munchkins tell her that the Wizard of Oz will know what to do ("Follow the Yellow Brick Road"). She starts off towards the Emerald City. Dorothy and Toto meet three strange traveling companions, each of whom needs help: The Scarecrow's head is full of straw ("If I Only
Wizard of Oz experiment Louisiana, United States). CSC ’85. ACM Press, New York, USA, 292-297. Good, M. D., Whiteside, J. A., Wixon, D. R., and Jones, S. J. 1984. Building a user-derived interface. Commun. ACM 27, 10 (Oct. 1984), 1032-1043. Several dozen references here. Wizard of Oz experiment In the field of human–computer interaction, a Wizard of Oz experiment is a research experiment in which subjects interact with a computer system that subjects believe to be autonomous, but which is actually being operated or partially operated by an unseen human being. The phrase "Wizard of Oz" (originally "OZ Paradigm") has come into common usage