As I noted in a post on Peter Morville’s Findability several years ago,
“Interfaces are not what they used to be. The computer-human interface is both more and less than it was a few years ago. Interfaces are not only, or even primarily, a screen anymore. Yet, screens remain important to most design efforts, even though interfaces are increasingly part of the environment itself. As John Thackara and Malcolm McCullough both recently pointed out, entire cities are developing into user interfaces as ubiquitous computing environments expand.”
Caleb, over at MobileBehavior, recently observed that mobile phones do not yet provide users with a graphic language for touch interactions. Caleb’s post points to an early visualization of a standard graphic language offered by Timo Arnall of the Touch project, which researches near field communication. Caleb makes his point by talking about the confusion that consumers experience when faced with a visual tag (v-Tag), or 2D Barcode, and does so with the following Weather Channel forecast that offers viewers an opportunity to interact with a visual tag using their mobile phones (wait until about 45 seconds into the video). The forecast fails to indicate to viewers what the v-tag does.
The user experience team that developed the v-tag for that particular forecast must have assumed viewers would know it represented an invitation to interact. A search on the Weather Channel website fails to return any information on the use of v-tags in their media programming though.
In a previous discussion of Dan Saffer’s book, Designing Gestural Interfaces, I made a similar point about mundane gestural interfaces in public bathrooms, a setting with fairly established graphic language conventions. Yet, even such mundane gestural interfaces can pose difficulty for users. As I noted,
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