The Hidden Cost of Touchscreens
medium.com
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Just about every car I've owned, I develop a muscle memory of where all the important switches are, and how far to turn to "hot enough" or "cool enough" etc. Same for most things around - I know fairly well how far to turn the oven for 180 +-10, no need to look. I might check if it's something especially sensitive (rare).
Thanks to iPhone (I have one, and like it) touch has become the answer to everything and that muscle memory doesn't work any more.
My current car is a pain in the arse as despite a dozen switches on the steering wheel they've forced simple functionality into the centre touch screen with awful UI where a simple switch would have worked fine.
Only Apple and a handful of others have any idea of usable UI - and even they aren't as hot as they once were. Anyone making appliances or cars is especially bad at UI. Worse if they decide to add helpful beeps. I don't want to be looking at anything in the car except the idiots outside it and the speedo. Nothing. Ever. Give me the damn switches back!
Heck even smart phones are a step back for use as a camera or phone. Old Sony-Ericssons had the ergonomics of a camera as well, including button and lens cover. Every feature phone could be answered (and most of a text written) without looking even once.
I really would like my stuff to move beyond this cargo cult of touch and keep it just for the iPhone.
> to the point where I assume it was their intention
It really does feel that way sometimes. They must have special "Interfaces that almost work" courses. :)
Re. screen sucking the battery dry, you might consider the energy needed to keep the car moving which complete dwarfs the few watts the screen takes. It's a complete nonissue.
Don't get me wrong, with cars getting taller it's good to have backup cameras (and indeed it was part of my thinking in selecting the car, having recently had a nephew reach walking age), but the desire to make it multitask creates the touchscreen urge.
The device being connected to the Internet is convenient for not having to think about downloading podcasts and suchlike. Having to physically claw the device out of my pocket, push my sunglasses up, and squint in the bright sunlight in order to find the spot on the screen where I need to tap in order to rewind 15 seconds so I can catch whatever I missed because of that dump truck that just drove past, though, is getting annoying.
After many years, I was almost to the point where my muscle memory was good enough to do it without taking my phone out of my pocket. Then the latest iOS dropped, and they both moved the relevant touch targets and shrunk them down to something like 5mm square.
I know there are gloves with conductive fibres woven in, to make them work with touchscreens. Probably not -30C rated, though.
It would be hilarious if Apple did make a car and everything used physical knobs and buttons because of course that's better.
The main difference, aside from the more utilitarian finish and lower cost, is that it replaced the touchscreen of the other models with 6 buttons. The reviews have almost universally praised it as the one to get due to the speed and ease of use - of course convenience is going to rate highly with folks who are into something like Nespresso.
My current car, Subaru Outback, has groves for some common touch buttons but still hard to develop muscle memory because you cannot feel your way to right button. I hate it. Impossible to not take your eyes off the road to touch radio presets or your contacts.
Same thing with cameras, it is so much harder to use cameras with touchscreens (also I guess menus too). But manufacturers keep adding touchscreens to cameras. I Finally got Fuji x100f which has a lot of knobs and dials for easy access to common settings. It took me maybe a couple of weeks to develop muscle memory for it.
Another one of my pet peeves, I loved Kindle Keyboard with physical buttons. When it broke, I got the new Kindle Touch. I kept accidentally flipping pages. You need to hold it so that your fingers never rest on the screen, just awkward for me. I think physical buttons were great differentiator for Kindle. I returned Kindle and got iPad instead. (I know I could have gotten Kindle Oasis, but it was so expensive for what it does and I keep thinking if I will spend that much money, might as well spend a bit more and get something with extra functionality.).
Compare a Cessna 400's cockpit [1] to a switch cluster in a recent Mini [2]. The car still has physical switches, which is better than a touchscreen. It's also styled to resemble an airplane cockpit. But all the switches look the same, and some of them have two positions while others have three; some of them disable things while others turn them on.
In the Cessna, each control has a different color, and a different surface texture. The flap lever is styled to resemble an actual flap. The same goes for gear levers on planes with retractable landing gears: they are styled as little wheels. As the pilot, if you touch the wrong lever, you'll immediately feel the difference, avoiding dangerous mistakes.
In the Mini, all switches have the same color and they feel the same. Their status is indicated with a little LED on the switch itself. You neither feel the current status from touching the switch, nor is there any tactile feedback of whether you are touching the right switch. With a touchscreen, that remains true, but additionally the location of the switches changes too.
[1] https://qph.ec.quoracdn.net/main-qimg-f37712d0cd771d5aee97ac...
[2] https://www.gunaxin.com/wp-content/uploads/2017/10/2017-MINI...
There are far more people around cars.
The people in, and around, cars, have far less training to specific instrumentation and controls than those in, and around, aircraft.
It may be a way to foster brand loyalty. I find Honda's way more intuitive, but Toyota's is fine, too.
http://images.nadaguides.com/ChromeImageGallery/Expanded/Whi...
The IVI display is out of the way but accessible (there's a jogdial on the center console to control it while driving). HVAC controls are manual and very easy to use without looking.
https://www.telegraph.co.uk/content/dam/motoring2/2015/12/03...
1. wanting a physically small car (I'm bad at parking)
2. ...that wasn't anemic at highway speeds
3. ...and could (uncomfortably) fit a couple of friends if necessary, or some flat-pack furniture boxes
4. ...all without being either bland or ugly as sin.
Take my biggest peeve, the blower switch on the 2011: If you press "increase" while at max blower, it stays at max blower. If you press "decrease" while at min blower, it turns off. If you press "decrease" while at off, it goes to min blower.
So you can jam the blower to max without looking, but if you overshoot on the way back down, it goes off and on again!
Seems like the "turn to lowest if decrease is pressed while off" was explicitly designed to overcome this issue.
There's a reason that many professionals who use computers for repetitive high-skill tasks (video editing, music production) have custom input hardware for it.
With the nordics being very dark and cold for half a year or more, being able to operate the vehicle in limited visibility would be paramount.
Similarly, operating a capacitive touchscreen is not fun in -20C or colder.
Just a couple of anecdotes - the first being cash machines where I input the PIN using the traditional buttons on the numeric pad, then i start using the touchscreen to make other choices. Pick one or the other, not a mixture of the two. Or self service petrol pumps that end up covered in grease and dirt, because they're in that kind of environment.
Once i was waiting in line at the Eurotunnel and the person in front of me was clearly struggling. It took them about five minutes to get through the registration process and they kept leaning over out of their car window, stabbing away at the touchscreen with their finger appearing somewhat frustrated. I assumed they must have had trouble finding their booking.
When I got to the booth myself I pressed the touchscreen and it was immediately clear that the calibration was off, by about a couple of finger widths - this was enough to cause the problems for the user before me, as they were trying to type in their booking reference but it would always choose the wrong digits. So when I typed in my booking reference I moved my finger a little to the side to account for the calibration error. Easy! Well, not so much if you're not technically inclined enough to recognise this kind of issue when you see it.
Re: calibration: In Austria we have touchscreens for buying train tickets at the station. As a tall person looking down on the screen I always have to factor in some offset, touching slightly beneath the thing I want to hit. Not that bad with big areas. But typing out stuff on the software keyboard is terrible.
Older ATMs used them to allow you to make context sensitive choices, while also having the numeric pad.
And now i find myself pondering a "smartphone" with rows of buttons along the longer edges of the screen...
Touchscreens are pretty natural and intuitive, especially for things like ATMs, but you can't have braille on ATM touch screens so you need the buttons no matter what. At least in the US they usually have headphone jacks to replace the information presented on the screen though, and since you have a screen you might as well make it a touch screen.
Try to watch someone in their 60s operate them and you will learn that the are anything but.
My dad find them endlessly frustrating, as his first instinct when talking about something in an image or something is to put his finger on it. But that invariably triggers something on such a screen.
He also struggles with things like Google Maps on a PC with a scroll mouse, as to him the natural action is to "pull" the map closer rather than "zoom in". End result is that he often find himself scrolling the wrong way...
The biggest difference is they don't have 60+ years of experience telling them what won't work (because it didn't used to) like your dad probably does.
I did the same thing!- good thing we had some OS floppies lying around
It's been a week and I'm still discovering things by accident or having to look up online how to do things because it's all hidden away with no visual indicators. I've pretty much decided to shun the whole thing and make things look like what they are whenever I make UIs.
I agree with this strongly and recommend using high-contrast features and color wherever it can assist in rapid recognition of important UI elements. I remember being surprised by how much font-lock-mode reduced my bug/typo rate; I started fixing many errors immediately after typing them because the color was obviously wrong.
However... it's important to remember that a lot more color blind people will use your UI than you might suspect (if you even remembered to account for color blindness at all, which is unfortunately common). Color can still be used, but remember to also include other no-color based differences and/or use a tool (or consultant) to verify everything is still high contrast and easily distinguishable.
edit:
> “and when this one becomes tolerable, they’ll change the software on me.”
I had an echocardiogram a few months ago, and the technician had to restart after making a minor mistake setting up the first image. Apparently the test equipment was modular, and the plug-in features would show up on the touchscreen UI in the order the hardware was plugged in. The medical center had two of these devices, and the technician was used to the other machine. The one we were using had several buttons in opposite locations. Obviously this was only a minor problem at the time, but medical equipment is another situation where it's probably a very bad idea to make the UI layout unstable.
Having physical buttons has the advantage of limiting how much the UI can be changed in a software update.
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One place I lived had train ticket machines from the 90's that were an analog of Teletext. If you knew the 3-digit zone code for your end station, you could just jam in the zone code, adult, buy ticket, pop in your magstripe card and have a ticket in 5 seconds flat. It was absolutely perfect.
They were then replaced with user-friendly Windows-powered machines where buying the most basic ticket took 2 minutes as you had to poke though pages of stations on a crap resistive display.
Case in point, the other day I spent 15 minutes trying to figure out how to connect my phone to a car via bluetooth (I'm still used to there just being a button for pairing).
Ended up having to search online for the instruction manual to figure it out, turns out pairing is only available via voice command when the car is in park ¯\_(ツ)_/¯
Douglas Adams (1979) The Hitchhiker's Guide to the Galaxy
On my Android Auto, the voice-activated voice control also tends to trigger inadvertently when playing podcasts.
Once that happens, the only way I've been able to switch it back to English is via the steering wheel controls, but you can only get to that menu when the vehicle is in park.
I guess their policy is "fuck the mute and the non-English speakers"?
Same goes for audio/DAW control surfaces; as much as I'd love to replace all equipment with an iPad, it just doesn't come close to the feel of an Ableton Push (for instance), and I don't see how it ever could.
It's a shame because at one point the Macbook Pro was a machine almost without flaw.
And no, for some people getting a Windows or Linux machine simply isn't an option without a level of investment in new software that simply can't be justified. Apple have people over a barrel. All that vertical integration has led to some of the best computers ever made, but it also gets you in trouble when your chosen walled garden gets burned down.
They then made the same regressions as the rest of the industry and moved to a display with modal buttons.
That is an even bigger issue than the decision to use a touchscreen. Don't these companies want to make good products? I can't imagine releasing something without even attempting to put it through some realistic usage. Given the sorry state of in-car interfaces, I suppose I should not be surprised.
Ford decided to go a different direction and I left the project shortly before it was ultimately scrapped. The ideas were awesome, but for various reasons, we never really built anything.
What's worse is whatever your phone of choice is, it's likely to know a HUGE amount more about your. Your contact list, what you searched on recently, tickets you bought, public transit research, etc. So instead of say "Navigate to Joe Random" you end up hunting and pecking at a terrible on screen keyboard with a terrible touch interface that doesn't even allow multitouch or swipes. God forbid you change your mind underway.
Distractions can cause lives, and car manufacturers are doing worse than Apple/Google. The easiest fix seems like it would be mandate that car manufacturers allows users to choose their navigation system.
More info on the distraction claims at: https://www.prnewswire.com/news-releases/aaa-apple-and-googl...
A rocker switch is added to the edge of the phone, up is dit and down is dah.
I coulda been a billionaire! :-)
Most of today's UI's are centered around web/mobile where form over function is the rule.
But it was cheaper. And there's where touch screens really come to the fore. They're less expensive than the bespoke hardware interfaces that cars otherwise use.
In cars, though, it's not enough to be hard to use. It's dangerous to use the unfamiliar touchscreens while driving.
Turning a virtual knob with a mouse pointer is a terrible UX. Mapping parameters to a midi keyboard is also pretty bad, with the exception of hardware like the Native Instruments S MK2 midi keyboards or the Maschine that are specifically built for controlling certain software.
My 2015 Nissan Leaf has on the face of the steering wheel two 2-way rocker switches, a 3-way rocker switch, what looks like a rocker but is actually two buttons, and five other buttons. This is in addition to the two control stalks that have a dizzying array of positions and knobs themselves.
Three of those buttons are for dedicated features of the infotainment system I will never intentionally press. The answer/drop call button could also function to invoke the voice recognition feature and eliminating the dedicated button. The cruise control utilizes a 2-way rocker and two buttons, it really could be reduced down to a single 3-way rocker.
Infuriatingly the model with the infotainment system, an upgrade, replaced the knobs for volume and temperature control with buttons?! You might think it's to reduce space for the infotainment system but when you look at the two consoles side by side they're proportional spacing is the same.
The infotainment system has two to three physical buttons dedicated to features you shouldn't be using while driving and would better hidden behind the menu button. Of the physical buttons that are arguably usable, there are two that I will again never intentionally press. They'd have been better off making the buttons color/symbol coded and function programmable like the buttons that flank the sides of ATM screens.
The process of vehicle validation should be extended also to user interface besides drive-train.
But more obviously: the current state of your air con isn't as deeply absorbing and distracting as, say, your Facebook feed. So one is pretty bad to be looking at while drive, the other is lethally dangerous.
The skeptical side of me thinks that car manufacturers are simply preparing us slowly to accept screens in the car so that the next generation accepts it by default.
I recently switched to a car which is the outgoing generation of that particular model and (almost ironically) has a physical button on the dashboard to simply stow the screen away. One cannot even tell that there could be a screen there !
There still is a screen in the instrument clsuter but it's monochromatic and I have set it up to display the speed and a "sub-readout screen ?" to display fuel consumption. The instrument cluster screen is also capable of showing GPS direction instructions as well if the main screen is stowed away.
Everything else has a physical switch. The HVAC status is dispayed on it's dedicated LCD on the center console.
I like the outdated tech in my "new" car.
I'm not quite this cynical. I think car manufactures got all excited by the tech (in part due to Tesla just lazily slapping in a huge touchscreen and getting lots of coolness points for it, and in part due to the massive success of Android / iPhone / iPad), and decided they wanted cars to have that too. Car manufacturers are roughly 5 years behind current tech, so they rushed into touchscreens and by the time they got their products to market, the tech felt dated and the UX was never well thought out.
However, smarter car manufacturers learned from that and are now moving away from the touchscreen-only controls now, using them just for auxiliary needs or for things that really require them (like GPS navigation).
Consider the the Gen 1 Volt, where 99% of all buttons are identical touch-only pads. http://hanabi.autoweek.com/sites/default/files/styles/gen-12... As much as I love this car, this console is a huge UX disaster every bit as bad as a touchscreen-only car, and doesn't even earn any 'coolness' points for doing it.
Then in the Gen 2 Volt, they went back and put in lots of distinct physical buttons and dials for those previously-touch-only actions https://electromotivela.com/wp-content/uploads/2016/10/chevy... Not perfect, but this is a massive improvement over the prior model.
But I do hope the manufacturers do realise that having touch screens only is incorrect and physical controls which can be operated by muscle memory are safer.
On Pixel 2, double press Power button to start the camera app; then use volume buttons to take the photo. Not as ergonomic as Sony, but still works.
I'm sure other phones have something similar.
Although physical buttons have a habit of failing (I have had multiple phones fail with button problems).
I have a Moto G3: double tap power to go into camera mode from the lock screen, or alternatively "waggle" it twice to get into camera mode (if screen turned off).
Both methods work, but I use them rarely enough that I still haven't learned to use either of them quickly when I actually need to take a photo quickly. And I am definitely a technically competent user.
So from "screen off" to "picture taken" it's "tap power twice, tap volume". So much better than I've had to get used to with my prior phone.
There is a 5 direction one from Sony. One or two of these and a small black and white screen near the gauges should be all you'd ever need.
Might as well swipe the touchscreen (or a touchpad) with some haptic feedback.
At small sizes, well shaped buttons with all chosen stiffness and press depth are unbeatable. Not even a lever comes close. (think gamepads and analog sticks or hat controllers)
For analog input, levers are best, but they have to be big enough (joystick) though steering wheel comes close.
There is a good reason most vehicles use either a steering wheel, potentially multiaxis, or a joystick, augmented with buttons and levers. Stepped knobs are also good.
[0] https://www.gsmarena.com/sony_ericsson_m600-pictures-1425.ph...
Voice command: shout at car to make it cooler. Car doesn't understand. Shout at car to turn off radio so your voice command is clearer. Car doesn't understand. Take eyes off road to turn off the damn radio with the touch screen. Crash!
The button interfaces actually work 100% of the time. Voice command... lol...
And everything is just fine?
I'm tentatively looking for a new car and it looks like i'm locked out of most of the nice things because of idiotic touch screen controls.
Is this even a problem on a Tesla? My 2005 Honda with climate control can do this. I rarely adjust my a/c or heat. On a super hot or cold day, it will simply try its hardest at the beginning to reach the desired temperature before settling down.
I would think a new car like a Tesla would do it even better out of the box than my aging car.
So management (of the car company) pushes through a choice they don't understand, without understanding the implications ... and the problem is touchscreens ?
Sorry. That's not correct.
Tesla's interface has a good cpu and is quite usable (knowing EU car manufacturers my bet is that the first problem is woefully underpowered cpu). I wouldn't say it's at peak performance yet, but it's certainly as usable as a first stab at lots of buttons would be.
This is in fact the entire premise of the entire article. Management blindly doing things because "they're the future" ... sucks.
But we all know what the real problem is as well. The opposite attitude in management ("stay with the classics") also doesn't work.
You NEED management to know the business.
No exceptions !
This is yet one more example of total management failure. It should not reflect badly on any particular interface design principle.
You get the best of both worlds, a context-aware interface without losing focus on what’s in front of you.
Let the sheer stupidity of that sink in for a while...
Meanwhile in my old Mitsubishi switches rarely break, and if they do it'll cost a couple of dollar to replace it.
I recall seeing older systems that used transparent keycaps, and invariably they would be covered in stickers and whiteout as the employees had tried their best to implement changes on the fly.
And now that i think about it, were there not a story posted a while back about a restaurant where the waiters used an age old grease marker on the screen of their POS to mark reservations that had arrived? This because while the software had such a feature, it required too many clicks or some such to be effectively done during a busy day.
If you need to do something complex like select a destionarion on the map, I don't think there's any interface that would let you do that safely as you need to visually identify a location.
It's the most dissatisfying thing about my car. In fact, it might be the only dissatisfying thing about the car, and yet it's still enough to make me reluctant to recommend the car to a friend!
As you can imagine, a doctor could previously fully focus on the patient as they were able to feel the feedback of physical buttons.
With the introduction of a touchscreen, they would have to continually switch between looking at the positioning of the patient, and looking to their right at the LCD panel in the CT scanner itself.
A quick look at the website of the large company in question seems to indicate that they reverted back to a non-touch screen display. I should hope so given that we're talking about hospital patients here!
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Regarding touch screen mentioned in this piece, the problem is those who created the product never use it and never it in original usage conditions. Many ATMS machines are filled with alighment problems to over confusing options.
Even their MENU & Navigation is not thought through
* requires sight (both line of sight and focus)
* fine motor control
* how does it interact with liquids (grease, blood, coolant, vomit) ?
* single point of failure (touch controller)
https://www.google.com/search?q=boeing+starliner+touch+displ...
https://upload.wikimedia.org/wikipedia/commons/6/62/Volvo_S8...
Buttons are great for quickly interacting with the device without having to glance at it.
I shouldn't have to watch my screen to skip/pause a song, dismiss a notification, etc.
Not recommended: expensive, somewhat ugly, painfully slow UI, and frankly not that awesome in any way other than a relatively impressive battery life (unless you're using GPS!).
That said, I'd love to see some serious research on this topic.
If you have payed attention to the controls in a cockpit, you will see that all the switches, knobs, and levers have different sizes, shapes, texture, and tilt. That is not accidental. It helps with muscle memory and when you have to alter many many different parameters in a short span of time, knowing where to look for and getting "instant" and tactile feedback is important, that is hardly possible with touchscreen interfaces as I know them.
The flap controls have little airfoils on the top.
The cockpit is full of things like that, all learned the hard way. People are very bad at inventing intuitive interfaces.
For example, aviation has standard phrases for things. Like "takeoff power" is maximum power, as that's what you use for takeoff. One day, a pilot was landing and suddenly had to abort. He yelled "takeoff power" to the copilot, who heard "take off power", and chopped power to the engines at the worst possible moment, and they crashed.
The phrase was changed to "full power".
How could a generation of pilots and aviation experts never notice the ambiguity inherent in "takeoff power"? But they didn't, until there was an accident.
>As a consequence of the accident, sweeping changes were made to international airline regulations and to aircraft. Aviation authorities around the world introduced requirements for standard phrases and a greater emphasis on English as a common working language.[13]
>Air traffic instruction should not be acknowledged solely with a colloquial phrase such as "OK" or even "Roger" (which simply means the last transmission was received[58]), but with a readback of the key parts of the instruction, to show mutual understanding. The phrase "take off" is now spoken only when the actual takeoff clearance is given or when cancelling that same clearance (i.e. "cleared for take-off" or "cancel take-off clearance"). Up until that point, aircrew and controllers should use the phrase "departure" in its place, e.g. "ready for departure". Additionally, an ATC clearance given to an aircraft already lined-up on the runway must be prefixed with the instruction "hold position".[59]
https://en.m.wikipedia.org/wiki/Tenerife_airport_disaster
https://web.archive.org/web/20170218144312/http://lessonslea...
1. I'm a guitarist.
It's super annoying when a string breaks, even if I'm not using it. My fingers can feel even the adjacency of the string (vibrations, I'm guessing), and I lose all sense of orientation on the freatboard if one of the strings is gone, even if I'm not touching that string.
2. While I'm not a pilot, I spent years testing avionics.
Years later, I can still blindly, through muscle memory, replay sequences of commands in my mind, as actuated by mechanical buttons (LSKs) on either side of the display, and rotary encoders to "dial in" new values (e.g. frequencies).
I would usually run through the settings just with my hands, barely looking, and only double-check the settings as the last step, before actually committing to whatever action I was preparing.
I can't imagine doing something similar on a touchscreen without constantly havng to look.