"The 80:20 rule originated from Vilfredo Pareto, an Italian economist who studied the distribution of wealth in a variety of countries around 1900. He discovered a common phenomenon: about 80% of the wealth in most countries was controlled by a consistent minority -- about 20% of the people. Pareto called this a "predictable imbalance." His observation eventually became known as either the "80:20 rule" or "Pareto's Principle"."

Wie sich dieses Prinzip auf Informationsarchitektur anwenden lässt und welche Auswirkungen es auf Interface Design hat, erläutert Louis Rosenfeld bei 80/20 Again - Critical Architectural Junctures. (via iaslash)