Error in Design and the Design Challenge

5 minutes ago, when I was going to check my email in one of the computers at the UT Flawn Academic Center, I realized that I was writing my UTEID instead of my email address in the hotmail's user text-field. After reading chapters five and six from the book "the design of everyday things" I decided to classify this error as a "capture error", because two different actions have their initial stages in common, which in this case are entering my UT EID and entering my e-mail. Solving this error with good design could imply using a bigger font size for example. I believe that some errors can be prevented with good design, but not always our errors are the fault of bad design.

The evolution of design is an interesting topic. Improvements in design could be based on errors of past designs, especially nowadays, with the improvements in technology, and the flexibility of design. The famous "i-pod" is a good example of evolution in design, because 2 or 3 years ago it had about 6 buttons, and now it only has two.