
Usability
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Introduction to "How People with Disabilities Use the Web"
Accessibility - W3C
The power of the Web is in its universality. Access by everyone regardless of disability is an essential aspect.Gestalt principles of form perception by Mads Soegaard
Gestalt psychology attempts to understand psychological phenomena by viewing them as organised and structured wholes rather than the sum of their constituent parts. Thus, Gestalt psychology dissociates itself from the more 'elementistic'/reductionistic/decompositional approaches to psychology like structuralism (with its tendency to analyse mental processes into elementary sensations) and it accentuates concepts like emergent properties, holism, and context. In the 30s and 40s Gestalt psychology was applied to visual perception, most notably by Max Wertheimer, Wolfgang Köhler, and Kurt Koffka who founded the so-called gestalt approaches to form perception.Summary: The 10 most general principles for interaction design.

