3DUIevalII

3DUIevalII - 3D User Interface Evaluation II Lecture #16:...

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1 CAP6121 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Spring 2011 3D User Interface Evaluation II Lecture #16: Evaluating 3DUIs – Part II Spring 2011 Joseph J. LaViola Jr. CAP6121 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Spring 2011 Usability Evaluation in 3DUIs
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2 CAP6121 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Spring 2011 Classification Shortcoming Does not tell you “when” a method should be applied Does not tell you “how” to apply more than one method 3DUI evaluation models Testbed evaluation Sequential evaluation CAP6121 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Spring 2011 Testbed Evaluation Framework Developed by Bowman and Hodges (1999) Empirically evaluate techniques outside of applications Components initial evaluation taxonomy outside factors performance metrics testbed evaluation application and generalization of results
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3 CAP6121 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Spring 2011 Testbed Evaluation User-centered Application 8 Heuristics & Guidelines Quantitative Performance Results 6 T e s t b e d E v a l u a t i o n 5 2 Taxonomy Outside Factors task, users, evnironment, system 34 Performance Metrics Initial Evaluation 1 CAP6121 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Spring 2011 Testbed Evaluation – Initial Evaluation Gain intuitive understanding of generic interaction tasks and current technologies Experience and user observation Used for building taxonomy identifying outside factors finding performance metrics
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4 CAP6121 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Spring 2011 Testbed Evaluation – Taxonomy Develop taxomony of interaction techniques for interaction task in question Can use task-subtask approach Task Technique Component Sub-task CAP6121 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Spring 2011 Testbed Evaluation – Outside Factors Cannot evaluate in a vacuum Need to take other factors into account Categories task characteristics environment characteristics user characteristics system characteristics
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5 CAP6121 – 3D User Interfaces for Games and Virtual Reality ©Joseph J. LaViola Jr. Spring 2011 Testbed Evaluation – Metrics Objective measures speed accuracy Subjective measures ease of use ease of learning frustration etc…
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3DUIevalII - 3D User Interface Evaluation II Lecture #16:...

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