Thread by @AutomotiveUX

The MB #EQS with its #Hyperscreen has really decent info distribution & #IA, but the touch targets are too small and the capacitive steering wheel buttons require lots of visual, manual, and cognitive load to operate! #humanfactors #UX #IxD

The charging #UI is also very well-designed, but again... input could be better. There are better ways to input time.

And reachability sucks, which doesn't come as a surprise. BMW seems to have tried to mitigate similar reachability issues by shifting menus left toward the driver (basically pogosticking), but that inhibits overview and adds cog load instead.

It all comes down to that people shouldn't be performing these interactions while they drive. But since they still do, what's the lesser of two evils? Worse cog load+slightly better reachability/less manual load, or no reachability but lower cog load?

The answer is a good contextual design with the most likely actions displayed adequately both timely and spatially. It's not impossible.

It's called Tesler's law. "every application has an inherent amount of complexity that cannot be removed or hidden. Instead, it must be dealt with, either in product development or in user interaction." en.wikipedia.org/wiki/Law_of_co… #humanfactors #IxD #HCI

Good design requires extensive user research. Advanced contextual systems like this also require lots of computing power, but the EQS has that. But there's always an energy budget if you're running your system on a mobile platform.

Furthermore, I love the search light on the passenger side. It lights up the passenger area when you reach for something when there's no passenger occupancy.

But passenger screens still puzzle me. At least the ones that only provide half-ass redundancy. Not this one tho:

https://twitter.com/CARandDRIVER/status/1556052592140115973?cxt=HHwWioCz5dLlmpgrAAAA

Moving on... Swipe over toggle buttons is not optimal. Especially not for vehicle functions, since you might accidentally activate or deactivate stuff. The corresponding touch targets are too small and too far away. Remember Fitts' law? en.wikipedia.org/wiki/Fitts's_l… #usability

I love what they've done with peripheral lighting. The interior LEDs provide spatial and confirmatory feedback in certain situations.