Design Principle : Inattentive Blindness“The failure to cognitively process a stimuli that ispresented in clear view, leaving the observer without anyawareness or memory of the stimulus.”
Design Principle : Inattentive Blindness• Increased cognitive Load decreases user awareness.• Complex data entry should be broken in simple steps.(Multiple screens, Collapsible areas / Wizards)• Errors on a screen, should be displayed at or near thesource of error.• Errors should come quickly enough to be relevant.• Errors should be differentiated from screen text
Design Principle : Hick’s LawThe time it takes to decision increases with the number ofalternatives.The law applies to the design of software menus, controldisplays, context menus and emergency response.
Design Principle : Biophilia•Environments rich in nature views and imagery reducestress and enhance focus and concentration.•Business applications which deal with learning, healing,healthcare, education, concentration …. should considerbiophilia design.
Design Principle : Rule of ThirdsAn image should be imagined as divided into nine equalparts by two equally-spaced horizontal lines and twoequally-spaced vertical lines, and that importantcompositional elements should be placed along theselines or their intersection.
Design Principle : Attractiveness Bias"A tendency to see attractive people as more intelligentcompetent, moral and sociable than unattractive people."Used in images of people in marketing or advertising.
Design Principle : ClassificationLayout Fitts Law, Paretos Principle, Gutenberg DiagramBackground ArcheTypes, Biophilia, Rule of Thirds, Savanna, Attractiveness Bias, Horror VacuuiMenus Hicks Law, Fitts LawControls ArcheTypes, Symmetry, Contour Bias, Five Hat RacksError Handling Inattentive Blindness, Garbage In Garbage OutForms Garbage In Garbage Out
References• The design of everyday things (David Norman)• Universal Principles of Design, Revised and Updated: 125 Ways to Enhance Usability,Influence Perception, Increase Appeal, Make Better Design Decisions, and Teachthrough Design• Smashing Magazine Ux Design (http://uxdesign.smashingmagazine.com/)• Billy Hollis (talk on ux design, pluralsight)