The 50/50 Rule
Designing a UI for all the viewers? ...
"Much is made in the business world about the 80/20 rule. Also known as the Pareto principle, the basic idea is that in many phenomena 80% of consequences stem from 20% of the causes. Wikipedia has a good discussion of the principle, its myriad applications, and its common misuse and abuse. (I should have called this post "The Principle of Factor Sparsity"; that would definitely have merited an honorary doctorate down the road...)
80/20 and its variants play an almost mythical role in all facets of mainstream software design. You'll hear that 80% of users only use 20% of the features. Or that 20% of bugs account for 80% of the problems people find in released software. Of course, none of the numbers are exact, and people are quick to point out that the principle is in effect even when the numbers aren't exactly close.
The hardest problem in user interface design is when you come face to face with the 50/50 rule. Although rare, occasionally you will discover a a situation in which the needs and wants of half of your customers are diametrically at odds with that of the other half." continued ... (Via Jensen Harris)
"Much is made in the business world about the 80/20 rule. Also known as the Pareto principle, the basic idea is that in many phenomena 80% of consequences stem from 20% of the causes. Wikipedia has a good discussion of the principle, its myriad applications, and its common misuse and abuse. (I should have called this post "The Principle of Factor Sparsity"; that would definitely have merited an honorary doctorate down the road...)
80/20 and its variants play an almost mythical role in all facets of mainstream software design. You'll hear that 80% of users only use 20% of the features. Or that 20% of bugs account for 80% of the problems people find in released software. Of course, none of the numbers are exact, and people are quick to point out that the principle is in effect even when the numbers aren't exactly close.
The hardest problem in user interface design is when you come face to face with the 50/50 rule. Although rare, occasionally you will discover a a situation in which the needs and wants of half of your customers are diametrically at odds with that of the other half." continued ... (Via Jensen Harris)
Pareto's Principle - The 80/20 Rule.
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