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It depends on how much evidence you need to change the design decision. Gather feedback until you have enough evidence. In this case, if it's a pure interaction design decision that you have a lot of control over, yes, change it right away. If it was a decision that has more to do with branding or the product itself, you might feel like you will only get ...


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Although I wouldn't change a prototype based purely on the feedback from the first tester, I would definitely and fearlessly make such a change if I got a majority of the first 4-5 testers revealed a problem. ...and I would stop wasting testers on the old design until that change was complete. Here is why... In UX, Ignorance is precious. Every user only ...


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Sure! Why not? After all, you need to figure out what's best for your product in your process. If you have three alternatives, then go ahead and test those three alternatives. "A/B testing" is just a name. Not a law. Now, there are a few things you should be aware of when you collect data. One of the problems with A/B-tests is that you need a lot of ...


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If you video users (webcam on top of screen) and use screen recording software with a 'screen in screen facility to record the two feeds together then you will have a recording of users facial reactions as they complete tasks. This will give you a broad brush guide to their emotional reactions from their facial expressions. Lots of stressed expressions ...


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Suppose everything does need to be changed. But do you know what you are trying to change it to? Most complex applications existed because the users have very specific needs that made them stick with it despite its shortcomings. I would see discovery in this case not about the existing application so much as just understanding the user's context. What are ...



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