Published on October 29, 2008
The Laws of Design: From Principle to Practice Patrick Haney
Design principles are universal
“Like all man-made ‘laws’ they do not exist in the absolute sense - to break them is no sin.” John Maeda, on his Laws of Simplicity
Fitt’s Law The time required to move to a target is a function of the target size and distance to target
Make clickable areas BIGGER
Hick’s Law The time it takes to make a decision increases as the number of alternatives increase
Design for error. Donald Norman, Seven Principles for Transforming Difﬁcult Tasks into Simple Ones
Affordance A property in which the physical characteristics of an object or environment inﬂuence its function
Chunking or The Magic Number 7
Organization makes a system of many appear fewer. #2: Laws of Simplicity, John Maeda
Closure No, we’re not ﬁnished yet.
“Suggest” the box. Dan Cederholm
Signal-to-Noise Ratio The ratio of relevant to irrelevant information in a display
“There is no such thing as information overload, only bad design.” Edward Tufte
Color More than just a way to make your design “pretty”
Legibility The visual clarity of text, generally based on the size, typeface, contrast, text block, and spacing of the characters used
Accessibility Objects and environments should be designed to be usable, without modiﬁcation, by as many people as possible
Iteration A process of repeating a set of operations until a speciﬁc result is achieved
“Good Designers Redesign, Great Designers Realign” Cameron Moll
Thank You. http://patrickhaney.com
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