Universal Principles of Design, Revised and Updated
by William Lidwell, Kritina Holden, Jill Butler
Personas
A technique that employs fictitious users to guide decision making regarding features, interactions, and aesthetics.
The design that seeks to accommodate everybody generally accommodates nobody well. For example, the percentage of visitors who actually buy products on an e-commerce website is typically quite small relative to the total number of visitors, but most website designs (and redesigns) fail to consider the differing needs of buyers versus browsers — that is, they design for the average visitor, an impersonal and homogenized construct derived from sources such as visitation statistics, surveys, and usability testing. It is better to understand and perfectly meet the needs of the critical few than to poorly meet the needs of ...
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