User-centered Design, Needs and Emotions
The book "The Design of Everyday Things" (originally called "The Psychology of Everyday Things") was first published in 1986. In this book, Donald A. Norman describes the psychology behind what he deems 'good' and 'bad' design through examples and offers principles of 'good' design. He exalts the importance of design in our everyday lives, and the consequences of errors caused by bad designs.
In his book, Norman uses the term "user-centered design" to describe design based on the needs of the user, leaving aside what he considers secondary issues like aesthetics. User-centered design involves simplifying the structure of tasks, making things visible, getting the mapping right, exploiting the powers of constraint, and designing for error. Norman's overly reductive approach in this text was readdressed by him later in his own publication "Emotional Design."
Other books in a similar vein include "Designing Pleasurable Products" by Patrick W. Jordan, in which the author suggests that different forms of pleasure should be included in a user-centered approach in addition to traditional definitions of usability.
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