Authors:
Harry Hochheiser, Ben Shneiderman
Signposts at ski areas help skiers to choose slopes that match their skills and equipment. Skiers use this information (easy, intermediate, and expert; grooming; vertical drop) to make informed decisions, avoiding routes that may be too difficult. They may choose different skis or waxes depending on the conditions. When too many trails are marked "extremely difficult," operators cut some more "moderate" and "easy" trails to allow more visitors to enjoy the scenery. For Web surfers, good guidance and safe visits are still too rare. Despite extensive research and improved products, the primary experience of many users is frustration and…
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