Priority & Severity
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.. contents::

Priority
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Priority more focuses on the business impact of one issue.

	#. P0. Must fix as soon as possible.  Bug is blocking further progress in this area.
	#. P1. Must fix. High important function doesn't work.
	#. P2. Should fix soon, before product release.
	#. P3. Fix if time. Ok to defer to next release.
	#. P4. Nice to have.

Severity
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Severity more focuses on the technical impact of one issue.
	
	#. Bug causes system crash or data loss.
	#. Bug causes major functionality or other severe problems; product crashes in obscure cases.
	#. Bug causes minor functionality problems, may affect "fit anf finish".
	#. Bug contains typos, unclear wording or error messages in low visibility fields.