1、You find a bug, investigate it, and report it.
2、A programmer looks into it and fixes it, decides that a fix will
take so long it needs management approval, recommends that
it be deferred (fix it later), or determines (argues) it is not a bug.
3、 The project manager prioritizes the unfixed bugs and may
reassign them.
4、The project team (with representatives of the key stakeholder
groups) reviews deferred bugs and may reprioritize unfixed
bugs.
5、The test group retests bugs marked as fixed, deferred, or
irreproducible and closes them, or adds new information to
them and ask that they be reworked or reconsidered. It turns
some of these into appeals to the project team.
6、(This is a simplified description. Workflows vary significantly.)