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Semester wrap-up

Join us for a comprehensive review of the semester's course material, focusing on interface design principles, evaluation techniques, and experimental design. Get ready for the final exam and improve your understanding of interface design concepts.

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Semester wrap-up

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  1. Semester wrap-up …the review.

  2. Course ReCap • To make you notice interfaces, good and bad • You’ll never look at doors the same way again • To help you realize no one gets an interface right on the first try • Yes, even the experts • Design is HARD • To teach you tools and techniques to help you iteratively improve your designs • Because you can eventually get it right

  3. The Final • Wednesday, May 6: 3:00 – 6:00 pm • Closed book, one page of notes • Front, back, written, typed, nothing overlapping and no magnifying glasses • Cumulative • Similar format and ~50% longer than midterm

  4. DOET Review • What are Norman’s principles? • Affordance, mapping, feedback, etc. • What are they? Why needed? • Execution-evaluation cycle • Steps of cycle, what helps reduce gulfs? • Errors • Perceptual, cognitive, motor • Mistake vs. slip • Error prevention and recovery guidelines

  5. Design • Design Principles • Know what each means, be able to remember a few and use them • Web design – unique qualities of Web and impact on design, principles • Visual Design • Form follows function • Graphic design principles? • Clarity, proximity, alignment, etc.

  6. Exam topics, cont. • Evaluation • Characteristics of evaluation techniques • Predictive – Fitt’s, KSLM • What are techniques? • When to use which techniques? • Advice, guidelines for using techniques • Comparisons between techniques • How to analyze the data from the different techniques

  7. More topics • Some examples: • Advantages and disadvantages of interview, vs. questionnaire vs. observation • Compare/contrast think aloud vs. cooperative evaluation • What makes up an experiment? • Dependent, independent, controlled variables • Between or within subjects • Differences between a heuristic eval and a cooperative walkthrough?

  8. Final topics • Groupware • Classification matrix • Challenges in building and evaluating • Ubicomp • What are examples? • What are challenges?

  9. Norman’s principles example • Percent-done indicator follows which of Norman’s design principles? • An affordance helps reduce which of Norman’s gulfs? Why? • What is a slip? Give me an example…

  10. Experiment example You think a touch screen keyboard would be better than a hardware keyboard for a mobile phone. You design an experiment to test this, having participants use one interface or the other, but not both. • True or false: type of keyboard is a dependent variable • True or false: this is within-subjects • What could be independent variables? Would you want to control any variables?

  11. Predictive Evaluation • Why use Fitt’s or KSLM? • What are limitations? • Consider a pie menu: • What would Fitt’s say about average time to choose an item as compared to standard pop-up? • What would KLM say about it?

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