The Design of Everyday Things
Invisible Details of Interaction Design
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Two of the most important characteristics of good design are discoverability and understanding.
Don Norman • The Design Of Everyday Things
The visceral and behavioral levels are about “now,” your feelings and experiences while actually seeing or using the product. But the reflective level extends much longer—through reflection you remember the past and contemplate the future.
Don Norman • Emotional Design: Why We Love (or Hate) Everyday Things
Visceral design > Appearance Behavioral design > The pleasure and effectiveness of use Reflective design > Self-image, personal satisfaction, memories