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Tips to improve on IR (GMAT/EA)?
Ok. Which of you Trumpers did this?

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Tips to improve on IR (GMAT/EA)?
Ok. Which of you Trumpers did this?

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I’ll start: it was very early in my career and I was tasked with taking over the design on an in-cab display for heavy duty equipment. The UI was controlled with hardware buttons that were left/right/up/down arrows that controlled which element was selected on the screen. It had a home screen where users would select an item to jump to deeper menus and applications. I redesigned it into a grid-style menu (from the original list-style) because I found that as a grid you needed fewer button pushes to get from the first menu item to the last menu item. I was so acquainted with the display that using all the arrow buttons to navigate columns and rows didn’t seem like a big deal to me. User testing with 5 users on a test bench outside of the cabs where these would actually be used didn’t bring up any issue with the gridded home screen. However, well after release, I was on another project was related to this display and we were testing that UI, but off the cuff a user remarked that he hated how annoying it was to navigate the grid-style home screen. I died a little inside and didn’t tell him it was me who redesigned it (wasn’t the time to get into it). They made a great point that it was just easier to mash the down button a bajillion times until they got to the end of the list rather than try to switch nav keys to get to the right item.
Really humbled me and was a classic example of how a simple and observable metric like less clicks can directly be in conflict with an abstract heuristic like cognitive load.
I would have tested with more people, and with the display in an actual cab and should have done an A/B test to see if the grid was actually an improvement compared to the list.