The following image shows some qualitative feedback on the nutrition information screen and nutrition analysis screen.Ĭontinuous design iterations were a constant and important part of my design process. I also gathered much useful qualitative feedback from critiquers. The average SUS score is 81.7, which means the hi-fi prototype is excellent and is better than the low-fi prototype, whose score is 78.5. I also asked each critiquer to complete the SUS questionnaire to see if the hi-fi prototype is more usable than the low-fidelity prototype. I gathered some meaningful qualitative and quantitative feedback, then I iterated the hi-fi prototyper based on the feedback. To begin, select an item from the Chipotle menu below. I invited four product designers and one product manager to critique my design. Restaurants Chipotle Chipotle Nutrition Calculator Chipotle Nutrition Calculator Use our Chipotle nutrition calculator to add up the calories, weight watchers points and other nutrition facts for your meal. I documented the observations in the affinity map into a rainbow sheet to create visual patterns, prioritize study findings, and make strategic decisions. which helps me to summarize duplicate observations. I made sticky notes for the most important findings and errors, then I sorted the sticky notes into 3 categories: nutrition information, customer information, and nutrition analysis. The average SUS score of the low-fi prototype is 78.5, which indicates the design is good but can be further improved to be excellent. SUS can measure the effectiveness, efficiency, and satisfaction of a design.
Quantitative - System Usability Scale (SUS) The average session length is 32 min, and the longest is 63 min, the shortest is 26 min. After the study, I gave each participant a 10-question SUS questionnaire to complete to gather quantitative feedback. I design 5 scenario tasks and ask participants to finish, observe their behavior and ask for qualitative feedback. Moderated usability study in person/via zoom. The five participants cover the four user groups defined in the Empathize phase. I hired 5 participants: one fitness buff, one diabetic, two users who don't want to be over fat, and one user who doesn't care about nutrition at all.
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Observe and measure if participants understand the new features, the value, and how to use the new features.
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