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80 / 20 Rule

What is it?

80 / 20 (Pareto) Principle
20 % Action
=
80 % Result
  • It states that, for many events, roughly 80% of the effects come from 20% of the causes.
  • Discovered by Vilfredo Pareto.
80 20 Rule
Study
Social Relation
Design
APPLY ON
Bussiness
Health

Examples of 80/20 Rule

20 % of
80 % of 
Drivers
Road Accidents
Responsible for
Married Couple
Part of 
Divorces
Roads
Traffic
Have
Clothes
We wear 
Time
Actors
Get
Public Attention
Scientists
Discovered
Theories
Drunkers
Consume
Alcohol
Gives
Foods & Minerals
Land
Apps
Use in
Time

Here are few more examples of the Pareto principle in action:

  • 20 percent of employees produce 80 percent of a company’s results.

  • 20 percent of a given employee’s time yields 80 percent of their output.

  • 20 percent of software bugs cause 80 percent of the software’s failures.20 percent of a company’s investments produce 80 percent of its investment profits.

How to Apply 80/20 Rule

  • The 80-20 rule applies to anything. Personal tasks, business, software, whatever.
In business, 
20 % clients are responsible for 
  • Focus on 20 %, that will bring you  80% result.
In web design, 
  • Look at what 20% of things on your site would give you 80% of your desired results.
  • 80% of attention is spent on 20% of the web page.
  • Find, What are the top 20% of things that 80% of people use your website, software or app.
  • Keep focussing on the 20% of things that could make the biggest difference to your website.
Here is an example of the 80/20 rule on LateRooms.com :
 20% of website, 80% of people use
  • In designing of LateRoom.com new website, the focus has to be on the 20% of features and functionality that is most crucial for users.
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