The customers order their goods through special order forms. Product codes are attached to each ordered item (usually by the customer) and these are typed into the microcomputer by an assistant… Trolley loads of goods are then assembled at a dispatch-point where they are resorted into individual baskets and the contents checked against copies of the orders.
— “How the system works” from a media report on the Videotex online shopping system


“How easy is it to make mistakes while using your website? How easy is it to correct these mistakes?”



To err is human… to leave users hanging when they make a mistake is a straight-up a**hole move. Think that language is uncalled for? Try listening to the words that come out of a frustrated user’s face-hole.

Michael Aldrich was aware of the danger of errors, so fail-safes were put in place to prevent them. Of course, the kinds of errors today’s eCommerce websites have to prevent are way more complex.

When you think of errors, images of form fields and search bars probably pop into your mind. You’ll likely think of areas where users are expected to make mistakes.

But we’re more concerned about the parts of your site that appear to be working well but are actually so full of glitches, it’s like Neo vs. Agent Smith up in there.

These are the most dangerous because you can’t fix errors you don’t know about.