“In their work, designers often become expert with the device they are designing. Users are often expert at the task they are trying to perform with the device. [...] Professional designers are usually aware of the pitfalls. But most design is not done by professional designers, it is done by engineers, programmers, and managers.” TryingDoneDesignTasksManagersExpertsDesignerDevicesUsersEngineersProgrammersPitfalls Author:Donald A. Norman
“Change the attitude toward errors. Think of an object's user as attempting to do a task, getting there by imperfect approximations. Don't think of the user as making errors; think of the actions as approximations of what is desired.” ThinkingActionAttitudeObjectsTasksErrorsImperfectUsersAttemptingApproximation Author:Donald A. Norman
“When I use a direct manipulation system whether for text editing, drawing pictures, or creating and playing games I do think of myself not as using a computer but as doing the particular task. The computer is, in effect, invisible. The point cannot be overstressed: make the computer system invisible.” ThinkingUseGamesEffectsParticularComputerCreatingTasksDirectDrawingInvisibleManipulationEditingPlaying GamesComputer SystemsDrawing Pictures Author:Donald A. Norman
“The world is complex, and so too must be the activities that we perform. But that doesn't mean that we must live in continual frustration. No. The whole point of human-centered design is to tame complexity, to turn what would appear to be a complicated tool into one that fits the task, that is understandable, usable, enjoyable.” WorldHumansMeanWholeTurnsDesignFitActivityToolsTasksComplexesComplicatedComplexityFrustrationEnjoyable Author:Donald A. Norman
“Simplicity design axiom: The complexity of the information appliance is that of the task, not the tool. The technology is invisible.” TechnologyInformationDesignToolsTasksSimplicityInvisibleComplexityAxiomsAppliances Author:Donald A. Norman
