Pareto Principle states that 80% of consequences come from 20% of causes. Speaking of UX, this principle goes like this: 80% of users use 20% of your features or 20% of the code causes 80% of the errors. In simple terms, this principle means that a small amount of effort has a significant impact.
Wilfredo Pareto, an Italian economist, noted that 80% of Italy's land belongs to 20% of the population. He then carried out surveys on a variety of the other countries and found that a similar distribution applied. Despite its origins, this principle can be applied to everyday life, economics, and design.
Tips & Tricks
Pareto Principle helps you to make better decisions in your work whether you're building a website or software.
Put the main effort into the tasks that will bring the greatest benefit to your users.
Use this principle to prioritize development and address design issues that are important to the user experience.
Be aware of sample sizes and other forms of data that can redefine the Pareto Principle in fact.
In web design, it is common to employ uniform connectedness to show context. Tabbed navigation is a prime example of this principle. When you have two visually and proximally distinct elements (navigation link – and – page copy), the easiest way to show related context is to enclose disparate elements