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Death of the Button? Analog vs. Digital
mattnyc99 writes "Instapundit's Glenn Reynolds is sick of navigating menus to turn up the heat—while he's trying to drive. His take in the article (as well as a a no-holds-barred podcast) is that modern tech product designers should get back to analog controls before iPhone users get sick of looking down at their touchscreen everytime they dial without a dial. It may be up to you: Whither dangerous auto technology, or long live the touchscreen?"
The author complains about BMW's idrive control (more info here), but I think it is a good solution to this problem. It's a universal control that gives you a tactile interface without tons of buttons and knobs. Once you get used to it, it's actually pretty easy to use.
The problem with analog controls is that you can't add/remove them easily once a device is made. BMW, for example, updates the software in their vehicles periodically, adding and removing features. Without some sort of universal control system this is much more difficult to do.
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What's really needed to solve this dilemma (dialing-while-driving issues in general aside) is a technology which will allow software to subtly deform a touch screen to give tactile feedback. So buttons actually stand out from the screen a bit, etc. I seem to recall there being a technology like this in one of the later of Asimov's Foundation books (Foundation's Edge of Foundation and Earth, I don't recall which): the main character had an inclined, desk-like board on his ship which was a tactile touch screen. I imagine some combination of flexible (and probably elastic) LCDs and something like those toy pinboards (where you've got thousands of tiny dull metal pins arrayed on a board, and you can make impressions of your face and whatnot in them) could accomplish this. The hard part would be controlling all those tiny pins electronically; making the LCD elastic enough to keep snug to the contours of the pinboard would probably also be tough. But imagine the possibilities! You could actually feel the smooth, round curves of... er... those shiny Aqua buttons in OSX.... yeah, that's it. Though other possibilities may help popularize it faster. :-)
-Forrest Cameranesi, Geek of all Trades
"I am Sam. Sam I am. I do not like trolls, flames, or spam."
Seriously. The guy is a disturbed political nut job on par with Ann Coulter and knows nothing about technolgy other than he has a blog which only he's allowed to post on and pretty much nobody reads. This idiot was and still is a huge War Supporter. Frankly most people are sick of Glenn Reynolds, the Right Wing's Ward Churchill.
Maybe thats true, bit in this case (and I speak as a bleeding-heart pinko leftie) the guy is right. Designers seem to think that because thay can put a computer in it, it has to *be* a computer. I want analogue. Oh, and before anyone makes any luddite assertions, I'm a shit hot programmer who can juggle a 296,077 line (according to slocount) program in his head with ease. Technology belongs in its place and nowhere else.
That's true. I recently bought a cheap radio. I was surprised that even though it had an analogue tuning knob, it had a digital frequency display. Presumably LCDs and chips can be made so cheaply that a sliding plastic indicator actually involves a significant increase in the cost.
Yes. Cameras controls are a real problem these days. It's partly an issue of trying to be all things to all people. You want it fully automatic? Sure. You want to set everything yourself? Can do that too. Or try "sports mode" or "night mode" or "fashion mode" or "crowd mode" or "jewel mode" or "monkey mode". Okay, I made that last one up.
Pre-digital photographers had at minimum a basic understanding of film speed, depth of field, aperture size, and shutter speed. If you knew these four things, you could take any SLR manufactured before 1990 and use it immediately. Now, every camera has to be figured out. Every camera has a different interface. And I'm talking about the point and shoots.
The worst thing is when they are in some useless "mode" like "sepia/old fashioned" or "birthday candle" and you are missing a great shot because you can't figure out how to turn it off.
Rant. Rant. Rant. Young whippersnappers. Etc.
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It's not a tough interface design problem.
Heck, you can probably make an 80/20 rule for it:
1) 80% of the time, users are interacting on 20% of the function.
Come to think of it, it's simpler than that:
2) 80% of the time, users want one of four functions. Oh yeah, and might as well throw in
3) with a button interface, users can "spatially remember" three distinct buttons without looking (or training).
and
4) with a dial, that "spatial memory" becomes 5 discrete positions, and a whole mess of sweet intension/remission levels (=volume, tuning have much higher response times).
So design-wise, you want 5 dials maximum. Of those dials, four are fixed in function, and one changes the paradigm (and presumably some of the other dials' function). The main things anyone would want to do are there, and they're there at the first level.
If you wanted to have a similar arrangement with keys, you'd need between 10 and 25 keys. It would not make sense.
I gave up on aftermarket car stereos and just get whatever top end factory system is offered. The tiny buttons and Vegasesque displays were just getting too stupid.
Which would you prefer to set a preset station:
Factory stereo: Tune to station. Hold down preset button until beep is heard. Afterward, just hit that button to get that station.
Aftermarket: Run through a sequence of button pushes similar to that required to surface a submarine, and target and launch a cruise missile. Afterward, no less than three presses of tiny buttons are required to access your "convenient" preset.
I'm serious, too. I had onee once where it took more button presses to go to a station preset than to just tune the radio manually. There should be hard jail time given for interface abominations on that level.
Sometimes I would wonder if the Japanese engineers outsourced their interface design to institutions for psychotics.