Donald Norman's best-selling plea for user-friendly design, with more than 175,000 copies sold to date, is now a Basic paperback. First, businesses discovered quality as a key competitive edge; next came service. Now, Donald A. Norman, former Director of the Institute for Cognitive... read more
“...studies have to be made on people who are the same as the intended audience. The designers and the employees already know too much: they can no longer put themselves into the role of the viewer.”
“In fact, the best computer programs are the ones in which the computer itself "disappears," in which you work directly on the problem without having to be aware of the computer.”
If an error is possible, someone will make it. The designer must assume that all possible errors will occur and design so as to minimize the chance of the error in the first place, or its effects once it gets made. Errors should be easy to detect, they should have minimal consequences, and, if possible, their effects should be reversible.Highlighted by 194 Kindle customers
visibility. The correct parts must be visible, and they must convey the correct message.Highlighted by 176 Kindle customers
Design is really an act of communication, which means having a deep understanding of the person with whom the designer is communicating.Highlighted by 145 Kindle customers
When affordances are taken advantage of, the user knows what to do just by looking: no picture, label, or instruction is required.Highlighted by 131 Kindle customers
Feedback. In design, it is important to show the effect of an action. Without feedback, one is always wondering whether anything has happened.Highlighted by 131 Kindle customers
Constraints. The surest way to make something easy to use, with few errors, is to make it impossible to do otherwise—to constrain the choices.Highlighted by 131 Kindle customers
Affordances. A good designer makes sure that appropriate actions are perceptible and inappropriate ones invisible.Highlighted by 122 Kindle customers
A goal is something to be achieved, often vaguely stated. An intention is a specific action taken to get to the goal.Highlighted by 116 Kindle customers
The Gulf of Evaluation reflects the amount of effort that the person must exert to interpret the physical state of the system and to determine how well the expectations and intentions have been met.Highlighted by 100 Kindle customers
The same technology that simplifies life by providing more functions in each device also complicates life by making the device harder to learn, harder to use. This is the paradox of technology.Highlighted by 69 Kindle customers
Preface
1 The Psychopathology of Everyday Things
2 The Psychology of Everyday Actions
3 Knowledge in the Head and in the World
4 Knowing What to Do
5 To Err is Human
6 The Design Challenge
7 User-Centered Design
Notes
Suggested Readings
References
Index
Preceded by The Four Steps to the Epiphany, and followed by Universal Principles of Design.
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