What is 80/20 rule in software tesing

Jan 10 2018 3:44 AM
Hi all,
 
I have a basic idea about what is 80/20 rule. But how can we apply it to  software testing?
 
80% results come from 20 % of couses. when we are in software requirement analysis phase we found an defect. Then how can we apply this rule into that?
 
Thank you! 

Answers (2)