Add dating link rule
20% of bugs contribute 80% of crashes: Focus on fixing these bugs first.
20% of customers contribute 80% of revenue: Focus on satisfying these customers. The point is to realize that you can often focus your effort on the 20% that makes a difference, instead of the 80% that doesn’t add much.
The key point is that each unit of work (or time) doesn’t contribute the same amount.
In a perfect world, every employee would contribute the same amount, every bug would be equally important, every feature would be equally loved by users. But that isn’t always the case: The 80/20 rule observes that most things have an unequal distribution. That cool thing/idea/person will result in majority of the impact of the group (the green line).
Make decisions on allocating time, resources and effort based on this: These techniques may or may not make sense – the point is to realize you have the option to focus on the important 20%.
Lastly, don’t think the Pareto Principle means only do 80% of the work needed.
In this example, after 1 minute (20% of the time) we have a great understanding of what the final outcome will be.
The question is whether a single Level 5 is better than five Level 1s, or some other combination.
It may be true that 80% of a bridge is built in the first 20% of the time, but you still need the rest of the bridge in order for it to work.
It may be true that 80% of the Mona Lisa was painted in the first 20% of the time, but it wouldn’t be the masterpiece it is without all the details.
In economics terms, there is diminishing marginal benefit.
This is related to the law of diminishing returns: each additional hour of effort, each extra worker is adding less “oomph” to the final result. Take a look at this awesome video of an artist drawing a car in Microsoft Paint.We’d like life to be like the red line, where every piece contributes equally, but that doesn’t always happen. It could be 80/20, 90/10, or 90/20 (remember, the numbers don’t have to add to 100! The key point is that most things are not 1/1, where each unit of “input” (effort, time, labor) contributes exactly the same amount of output.