Sort of. But you can also use PBT for integration and end-to-end testing, too. A user tries to schedule something and it's overlapping with an existing event, w

Sort of. But you can also use PBT for integration and end-to-end testing, too. A user tries to schedule something and it's overlapping with an existing event, what happens? A user adds 10 events with their various requirements (none overlapping) do they successfully schedule? Set the expectations and model the expected behavior, verify that the system matches that expectation. The approach works at all testing scales.