Common Mistakes
In teaching people to use the walkthrough method, Lewis & Rieman have found that there are two common misunderstandings :
- The evaluator doesn't know how to perform the task themself, so they stumble through the interface trying to discover the correct sequence of actions -- and then they evaluate the stumbling process. (The user should identify and perform the optimal action sequence.)
- The walkthrough does not test real users on the system. The walkthrough will often identify many more problems than you would find with a single, unique user in a single test session.
Read more about this topic: Cognitive Walkthrough
Famous quotes containing the words common and/or mistakes:
“We early arrive at the great discovery that there is one mind common to all individual men: that what is individual is less than what is universal ... that error, vice and disease have their seat in the superficial or individual nature.”
—Ralph Waldo Emerson (1803–1882)
“The newspaper reader says: this party is destroying itself through such mistakes. My higher politics says: a party that makes such mistakes is finished—it has lost its instinctive sureness.”
—Friedrich Nietzsche (1844–1900)