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A while ago, if you wanted to get vitamin C from Boots (a British pharmacy chain), you would be presented with choices like these:

It is hard to see (and not just because the image is low resolution) that in one of these containers you would find orange-flavored tablets, while those in the other would be blackcurrant-flavored.  Many customers failed to notice these flavor labels and brought home a product that was not what their loved one wanted.  This design failed to prevent customers from making a mistake.

...continue reading "“I hate blackcurrant!”"

On Flickr, the user interface for adding a tag to an image is just a simple text box:

As a result, people make spelling mistakes entering their tags and do not even realize it.  Consequently, for easy to miss-spell concepts, like Massachusetts, the photos are scattered over many miss-spellings of the tag:

...continue reading "Tagging interface on Flickr still fails to prevent errors"