Priority,Severity

Priority:-

This field describes importance of test case.in general test engineers divided test cases as below types 

• Functional test cases-High priority(P0)
• Non functional test case-Medium priority(p1)
• Cosmetic test case (GUI and usability test cases)-Low priority(P2)

Severity:-

This field describes seriousness of defect with respect to functionalities and testing also

        test engineers are divided defect severity into below types 

High severity:-

if you are finding any defect ,due to that defect we are not able to proceed for further testing

Medium severity:-

if you are finding any defect, we can proceed further testing but with respect to customer requirement resole it must

Low severity:-

if you are identified any defect we can proceed further testing but may or may not resolve that defect