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**"Toolkit for Usability Evaluation: Enhancing User Experience Through Modern Tools"**

Explore motivation, definitions, and practical examples of usability evaluation tools to improve product usability through measuring progress, adherence to standards, and discovering human cognitive features. Evaluate usability attributes such as learnability, efficiency, memorability, errors, and satisfaction in categories like predictive modeling, observational studies, and participative user-testing.

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**"Toolkit for Usability Evaluation: Enhancing User Experience Through Modern Tools"**

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Presentation Transcript

  1. Toolkit Support for Usability Evaluation 05-830 Spring 2013 – Karin Tsai

  2. Overview • Motivation • Definitions • Background from Literature • Examples of Modern Tools

  3. Motivation • To improve or validate usability • Comparison between products, AB tests, etc. • Measuring progress • Verify adherence to guidelines or standards • Discover features of human cognition

  4. Usability Attributes • Learnability – easy to learn • Efficiency – efficient to use • Memorability – easy to remember how to use • Errors – low error rate; easy to recover • Satisfaction – pleasant to use and likable

  5. Evaluation Categories • Predictive • psychological modeling techniques • design reviews • Observational • observations of users interacting with the system • Participative • questionnaires • interviews • “think aloud” user-testing

  6. Challenges and Tradeoffs • Quality vs. Quantity • “Quality” defined as abstraction, interpretability, etc. • User testing – high quality; low quantity • Counting mouse clicks – low quality; high quantity • Observing Context • Abstraction • Event reporting in applications places burden on developers • Complicates software evolution

  7. CogTool • Evaluation Type: Predictive • Description: Uses a predictive human performance model (“cognitive crash dummy”) to evaluate designs.

  8. CogTool Overall Score: 6.5/10

  9. Mixpanel • Evaluation Type:Observational • Description:Aggregates developer-defined event data in useful ways.

  10. Mixpanel Overall Score: 9.5/10

  11. Chartbeat • Evaluation Type:Observational • Description: Real-time data visualization.

  12. Chartbeat Overall Score: 7/10

  13. User Testing • Evaluation Type:Participative • Description:Watch a user complete a task on your system while thinking aloud.

  14. User Testing Overall Score: 8.5/10

  15. Questions?

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