Should QA test from a strictly black-box perspective?

Question

Assuming that unit tests are handled by development, is there any reason for QA to have knowledge of the details of how a product works? By which I mean, do they need to kn

Answer 1

On projects that I've been involved with, QA tested from the user's perspective and their tests were from a standpoint of meeting requirements. Their testing was black box testing. White box testing was done by the devs. We never expected a QA person to open up a DB query tool and manually change values. This was the responsibility of the dev's unit tests.