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What is difference between Priority and Severity?

Posted by Admin on
Priority refers to how important a bug is to be fixed, and severity refers to how detrimental or damaging the bug is to the system or user experience.

High Priority & High Severity:

All show stopper bugs would be added under this category (I mean to say tester should log Severity as High, to set up Priority as High is Project manager’s call), means bug due to which tester is not able to continue with the Software Testing, Blocker Bugs.
Let’s take an example of High Priority & High Severity, Upon login to system “Run time error” displayed on the page, so due to which tester is not able to proceed the testing further.

High Priority & Low Severity:

 On the home page of the company’s web site spelling mistake in the name of the company is surely a High Priority issue. In terms of functionality it is not breaking anything so we can mark as Low Severity, but making bad impact on the reputation of company site. So it highest priority to fix this.

Low Priority & High Severity:

The download Quarterly statement is not generating correctly from the website & user is already entered in quarter in last month. So we can say such bugs as High Severity, this is bugs occurring while generating quarterly report. We have time to fix the bug as report is generated at the end of the quarter so priority to fix the bug is Low.
System is crashing in the one of the corner scenario, it is impacting major functionality of system so the Severity of the defect is high but as it is corner scenario so many of the user not seeing this page we can mark it as Low Priority by project manager since many other important bugs are likely to fix before doing high priority bugs because high priority bugs are can be visible to client or end user first.

Low Priority & Low Severity:

Spelling mistake in the confirmation error message like “You have registered success” instead of successfully, success is written.



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