Do not blame people when they fail to use your products properly. • Take people’s difficulties as signifiers of where the product can be improved. • Eliminate all error messages from electronic or computer systems. Instead, provide help and guidance. • Make it possible to correct problems directly from help and guidance messages. Allow people to continue with their task: Don’t impede progress—help make it smooth and continuous. Never make people start over. • Assume that what people have done is partially correct, so if it is inappropriate, provide the guidance
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