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Delivering Instructions for Inherently3D Construction Tasks ...

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presentation once the task itself is 3D. 4]. In our final study of paperfolding subjects constructed an origami seal. The instructions for the seal ...

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Delivering Instructions for Inherently3D Construction Tasks: Lessons and Questions for Universal AccessibilityPage 1Delivering Instructions for Inherently3D Construction Tasks: Lessons and Questions for Universal AccessibilityLaura LeventhalComputer Science DepartmentBowling Green State UniversityBowling Green OH 43403+1 419 372 2765leventha@cs.bgsu.eduAbstractThe notion that usability follows from the three dimensions user system and task is not new. Clearly any model of effective usercentered design includes some focus on task; our work is an attempt to refine this notion. In this paper I discuss a class of problems that we have dubbed inherently3D construction tasks. These tasks should lend themselves to dual presentations particularly those that include usercontrolled 3D models or realistic videos. The results of several studies are described; the results indicate that dual presentations are effective at presenting instructions for inherently3D construction tasks. When embedded in dual presentations 3D models may be effective in presenting instructions for these types of tasks as well so long as users make use of the models. A number of discussion questions are posited as to how this work would transfer to a wider population of users than was included in the studies that are reported.Keywordsusercentered design dual presentations multiple representations usercontrolled 3D modelsinherently3D construction tasks virtual realityOVERVIEWThis workshop Universal Accessibility to Ubiquitous Computing. will focus on issues of accessibilityto underserved groups such as the elderly. Much of the discussion will likely focus on the relationship of usercentered design to issues of user characteristics with system (user interface) characteristics. My paper will take a different track and focus on the interaction of task with user interface. The notion that usability follows from these three dimensions user system and task is not new. Eason 2] makes the case ...

Source: virtual.inesc.pt

 

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