Pareto Principle The 80/20 Rule

Pareto Principle The 80/20 Rule

I am always looking for  new ways to improve design velocity, and a co-worker recommended me this article. The Pareto Principle, also known as the “Law of the Vital Few” or the “80/20 Rule” is well known, even if not by title, to anyone who has the responsibility of managing a workforce, congregation or classroom of students.

The Pareto principle states that, for many events, roughly 80% of the effects come from 20% of the causes.

When Joseph M. Juran named this phenomenon after Vilfredo Pareto in 1906, it was as a consequence of observing that 80% of the land of Italy was owned by 20% of the population. It also explains why 80% of those convicted of crimes only commit 20% of all criminal acts and why 20% of those using the American health system use 80% of its services. Another way to explain it is that “80% of effects come from 20% of causes.”

Pareto Principle

In practical application, on a website, an instructional manual or similar reference site, if 80% of the viewers only use 20% of the supplied information, tabs, buttons, etc., then those tabs not being used can be minimized or eliminated for a cleaner, more efficient model. This then supports Ockham’s Razor and the positive value of simplicity.

Read more: The 80/20 Rule Applied to Web Design


  1. Awsome blog! I am loving it!! Will come back again. I am bookmarking your feeds also.

  2. You have a very nice site, I enjoy the design it really stands out.

  3. Very nice design and style and superb written content.

  4. Thanks for all your efforts that you have put in this. Very interesting information. “Do not consider painful what is good for you.” by Euripides.


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