Well, it probably is a definition of trying to figure out exactly what looking at the reactor design.... I'll give you an example. At the very beginning, when I got there, there was an issue that the shut-off rods weren't falling all the time. Now, the shut-off rods are absolutely critical to the safety of the reactor. That wasn't because the reactor was operating; that was testing one component of the reactor, which was the shut-off rods. In that case it was what the nuclear community calls “housekeeping”--there was grime and whatever in the shut-off rods that prevented them from falling.
So when you're testing a component, you could be testing the staffing, you could be testing the ability of the components, or you could be testing the quality control systems. But it wasn't until the reactor was commissioned that, in my view, these issues became quite serious, and that was the positive coefficient.