The greatest benefit of a BVT is that it draws a clear line between the testing that is expected from development and that which is expected from the testing organization. Testers can't cover for inadequate development test practices. That's unreasonable and unworkable. Every issue found in testing that should have been removed in development takes away the scarce time and resources needed for testing.
While this may sound like a slam against development, it isn't. In fact, it is a criticism of the rampant lack of definition as to what types of testing are required in development. By creating and executing a BVT, you establish an objective standard. If that standard is not met, at least you know where to look for answers.
Linda Hayes is CEO of WorkSoft Inc. She was one of the founders of AutoTester. She can be reached at firstname.lastname@example.org.