Measuring usability workshop
1 like•452 views
The document outlines the methodologies for evaluating user experience (UX) design, focusing on prototyping and feedback from real users. It discusses the process of synthesizing hypotheses related to usability and the importance of experimental design in UX research. Additionally, it provides resources for statistical analysis and remote usability studies to enhance user testing practices.
Measuring usability workshop
- 3. Infragistics Propietary3 Hi I am Stefan Senior UX Architect at Infragistics UI controls for desktop, web and mobile Developer productivity tools Teach and talk about UX
- 4. Infragistics Propietary4 UX has taught us a lot Are there any User Researchers in the room? How many of you have ever prototyped? Among these are there some who usually start prototyping early on? Are there any “exceptionals” who got feedback on their prototypes from real users, not stakeholders of colleagues? “UX is not order taking” Kevin Richardson
- 8. Infragistics Propietary8 Evaluation Model extraction
- 9. Infragistics Propietary9 Evaluation Model extraction Silent observation
- 10. Infragistics Propietary10 Evaluation Model extraction Silent observation Think aloud
- 11. Infragistics Propietary11 Evaluation Model extraction Silent observation Think aloud Constructive usage Retrospective testing
- 12. Infragistics Propietary12 Evaluation Model extraction Silent observation Think aloud Constructive usage Retrospective testing Controlled experiments
- 16. Infragistics Propietary16 Synthesizing a hypothesis Statement Short and specific Assuming some kind of relationship It should be testable Accept it or reject it Generalizes over a group of users Often uses passive voice
- 17. Infragistics Propietary17 Synthesizing a hypothesis - examples If leaf color change is related to temperature, then exposing plants to low temperature will result in changes of leaf color. Hyperactivity is unrelated to eating sugar. A person’s preference for a shirt is not related to its color. If I replace the battery in my car, then my car will get better gas mileage. Water levels affect the amount of lice suffered by rainbow trout.
- 18. Infragistics Propietary18 Synthesizing a hypothesis In the field throughout the day Communicate with colleagues and management via various means Send status updates for various crops Repetitive reports take up quite some time Agriculture is error intolerant (direct impact on harvest and profit) Communicate with multiple people while at a certain stop
- 19. Infragistics Propietary19 Null hypothesis The accuracy of information and time to gather and send a status report for the crops are independent of the means of communicating the report, the crops outlined and the number of people that need to be informed.
- 20. Infragistics Propietary20 Null hypothesis The accuracy of information and time to gather and send a status report for the crops are independent of the means of communicating the report, the crops outlined and the number of people that need to be informed. Independent variables Controlled variables Dependent variables Measured variables
- 21. Infragistics Propietary21 Experiment concept Task 1 ……………………………………………………………………. Send the following status update “Draught has affected oats in C012 field” via text to Manoj, Deepak and Divya Send the following status update “Rice in B039 field is robust and healthy” to Rohit by calling him
- 22. Infragistics Propietary22 Experiment concept Means of communicating Type of crops Number of people #Conditions = #Means of communicating * #People
- 23. Infragistics Propietary23 Experiment concept Error rate Rate of corrections Task completion time Accuracy of information Time to send a status
- 26. Infragistics Propietary26 Executing the study
- 28. Infragistics Propietary28 Further learning https://www.r-project.org/ http://randomization.com/ https://stats.idre.ucla.edu/other/mult-pkg/whatstat/ What statistical analysis to use cheat sheet Randomization to avoid learning effects R-project for running statistical analysis https://stats.idre.ucla.edu/r/whatstat/what-statistical- analysis-should-i-usestatistical-analyses-using-r/ https://stats.idre.ucla.edu/stata/whatstat/what-statistical- analysis-should-i-usestatistical-analyses-using-stata/
- 29. Infragistics Propietary29 Remote usability studies
- 30. Infragistics Propietary30 Preparation Create an account under indigodesigned .com Email [email protected] to get an invite to the shared workspace with the prototype Create your own usability study by extending the prototype and defining your own tasks
- 33. Infragistics Propietary33 Remote usability studies