Tag Archive for 'Consumer electronics'

Sluggish response in our Home Electronics

The Sony Mini-stereo on my desk has excellent sound, which is the main thing I suppose; but it has some annoying misfeatures. Take this one: what do you think happens when you hit the “Open CD Tray” button? If you said “The CD tray opens”, think again. Eventually it does, but first, the display switches to say “OPEN” and this word blinks a few times. Then, after 2-3 seconds of deliberation, the tray opens - making the display totally redundant (we can see that the tray is opening, Can’t we?!)

Sony mini-stereo display

Or take what happens when you hit the power off button. The same display now says “STANDBY”, and blinks this unsolicited information for maybe 6 seconds - then changes to “- - : - - “, its standby indication. So why didn’t it make this switch instantly? It isn’t as if it had to shut down a nuclear reactor core…

This behavior, where our electronic creations take their time before obeying, is seen in many devices around the house. I’d much rather have them do as they’re told and shut down (and up!) instantly.

The evolution of the On/Off power switch symbol

We all know the symbol with a vertical line in a circle: it identifies the On/Off power switch. It occurred to me that this familiar symbol is evolving in a bizarre fashion.On Off Power Switches

Originally, switches had a lever or slider that could move to either of two physical positions. In those days the switch was marked with the word POWER and its positions with ON and OFF. Then, as switches became smaller and more globalized, the two words were replaced with 1 and 0, as seen even today on many rocker switches.

And then the ubiquity of microprocessors made it more economic to do everything with momentary pushbutton switches; the computer inside could take care of figuring whether you meant ON or OFF. And so, the button now needed an icon that conveys both options; I surmise that is when the familiar “1-inside-a-0″ symbol came into existence (if you know otherwise do share in the comments!) This round icon fit nicely on round buttons, and became ubiquitous.

OnOff power switches

But then we start to see the form shown in the two photos above right: a bastardized version combining the 1-in-a-circle with a 1 in the same symbol. This makes no sense at all - the correct representation would have been 1/0, for On slash Off. Instead we get On slash OnOff. Sloppy thinking…

Such erroneous contractions are often seen in spoken language - as in “IT technology”, which expands to “information technology technology” (there’s even a company by that name, and its slogan, amusingly, is “We make sense of IT“). But now we see the same error invading the more compact space of visual symbols…

Emergent misfeatures: more than meets the eye

Any wise consumer checks the specification of the purchased item in the store, in order to know what he’s getting. Unfortunately, this does not guarantee a happy deal…

One day we decided to go buy a new TV set. We went to the store and selected a top notch Sony, with impressive specs. We took it home, set it up, put the resident teenagers in front of it… and they expressed major discontent!

It’s not that the picture was bad (it was crisp and vibrant), or that the sound was poor (it was excellent), or that the set failed to live up to the impressive specs on the box. The problem was that when you used the remote to channel-surf, instead of the Zap-Zap-Zap of the old TV, this one went Zapppp…… Zapppp……Zappppp… you see, the TV needed a whole second to blank the screen and bring up the next channel, making rapid switching an impossibility. You’d think a second is no big deal, but I had to agree with the kids: it completely obliterated the user experience of the surf.

Now, this is one thing I could never have foreseen. The feature list on the box did not say, “Optimized for a crummy channel surfing experience”; and having never had a TV that needed to think about obeying the remote, I never thought to check this in the store. It was an undocumented feature in the design - an emergent misfeature, if you will - that the buyer would only find out at home.

Here’s another: we have a Sharp microwave oven that has the useful habit of beeping once when the time is up. Cool. It has the slightly less useful feature of beeping again a minute later if you didn’t notice the first beep. Okay. And then it has the maddeningly stupid feature of beeping three times every minute thereafter, never relenting until you give it your attention. Hey, stupid oven, I heard you, but I’m busy right now - keep the food inside and shut up!

Again, this is an undocumented feature - one no salesman would tell and no buyer would ask, but one that delivers a major annoyance once you get the thing home. These examples showcase how the imagination of a bad designer in inventing misfeatures transcends the buyer’s ability to foresee them…

Come on, designers, have a heart!

The Eject button: Location, location, location!

Here is our Toshiba DVD player. It works well enough, but its design does make you wonder…

I’ve already extolled its remote control’s virtues (Not). Well, here is the unit itself. You turn it on with the round button at the right; good enough. Then you look for the Eject button, to open the tray. And you look. And you look??? because it is in the wrong location.

Toshiba DVD Eject button location

The button is marked in the photo with the red arrow. The point is, that is the last place you’d look for it! It is there to open the disc tray, which is far to the left. You end up reading the button captions - and these are quite tiny and hard to discern, of course - until you find it.

To quantify the extent of this design crime, compare the DVD player with the VCR on which we have it standing. Compare the red and green arrows’ lengths. That’s the difference between Human Centric Design and… whatever it is they did on the DVD unit. See what I mean?

Eject Buttons on Toshiba DVD and on Sony VCR

Don’t forget the Remote Control’s usability!

When you see an ad for a piece of consumer electronics, you seldom see a close up of its remote control. In fact, most people ignore the lowly R/C when making a buying decision. Yet this little item is the main way we interact with our TVs, VCRs, and so on; and a its usability, or lack thereof, is going to impact our user experience many times every day.

Remote control usability comparison
Look at these two R/C units, from two similarly priced DVD players, one mine, one my parents’. See the difference? In the one at the top the important buttons - play, FF, Rew and Stop - are prominent, visible, obvious… in the other, they are hidden among a confusing jumble of similar small buttons. And this means slower operation and frequent errors when you hit the wrong button by accident. We can assume the two arrangements cost exactly the same to manufacture; this is not about cost, it’s about attention to usability in the design stage.

So, of course, the better one is mine, because I always check this when making a buying decision? Well… err…