Tuesday 25 May 2010

iPad-ized

Interaction with the content using any keyboard/mouse interface involves a series of motor actions that have to be learned in order to effectively use such interface. Mouse and keyboard are not organs in our bodies, but they certainly are extensions of those organs in the same sense as clothing is extension of our skin (McLuhan, 1964). McLuhan claimed that: "clothing, as an extension of skin, can be both as a heat-control mechanism and as a mean of defining the self socially" (McLuhan, 1964; pp. 119). McLuhan believed that almost every technology, from weapons and money to television and cars, are such functional extensions of ourselves.

Computers are extension of our communication system, while mouse and keyboard are extension of our motor system used to connect with computers. Because we communicate with one extension using the other extension, the content is not directly accessed. However, this context changes when you interact with a touch screen based device.

Touch-screens have been quickly adapted to mobile devices over the past 2-3 years, with the current models like HTC Legend, iPhone 3GS or Sony Ericsson X10 achieving high-level of direct-touch interaction for the user. The biggest advantage of touch interface is that the extension is practically layered on the content, so the cognitive distance between the user and content is reduced only to the glass/plastic surface of touchscreen. You basically touch the content, the only thing that would be closer, is probably hologram or full-immersion virtual reality.

Now, our visual processing is tuned to perceive objects of particular sizes from particular distance, which is related with our images and depth processing system in visual cortex and low-level eye accommodation constrains. That's the reason why we use A4 or A5 format as a text medium and screens between 10 - 24" for the close distance stationary display and 3 - 6" for the mobiles display. 

At the same time, the potential of mobiles touchscreens is limited by the small size of the screen. Small size of the screen quite strikingly limits your possibility to interact with content, simply defined by size of your fingers divided by the size of the displayed content itself. The higher the result, the smaller the number of options is. 

With the iPad, this problem is solved by significantly increasing the screen size. This combined with multitouch screen makes possible to use almost all fingers to interact with different components displayed on the screen. 

iPad doesn't really introduce any new utilitarian quality to your life, but it definitely introduces a new way of interacting with the content. It's a science-fiction dream that came true, the smoothness, easiness and simplicity of touch-interface makes massive difference. And you don't need to work hard on integrating iPad with your daily life routine - it slowly does it itself, re-plugging such functions as internet browsing, e-mail, news, radio, movies, daily organizer, note-taker, e-book/articles reader or sketchbook away from laptop and mobile phone. And counting. 

As an extension of our communication system via large touchscreen, iPad brings new level of immersion with the content by making it more cognitively accessible. And it all feels really natural, biological, almost like it's always been this way. And typing this last sentences on the laptop keyboard in coffee shop at Warsaw Central Train station suddenly feels so... old school ;-)

[photo: Geek On Acid]

1. McLuhan, M. (1964) Understanding Media: The Extension of Man. London: McGraw-Hill. 

1 comment:

  1. What touch interfaces take away from our current computing experience is tactility and precision. While there are ways to work around those issues (by zooming, voice input etc.) I don't think we'll ever be able to completely bridge that gap.

    iPad is a cool toy, but considering that its browser is kind of slow, doesn't handle Flash and makes it impossible to touch-type, I don't think I'm going to get one any time soon.

    But overall I'm very glad that touch interfaces finally are being more widely adopted by manufacturers. I expect great things to come :)

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