[Retric]

QA let's you build a robot to tighten a bolt, then build a robot to test the bolt is tightened and repeat as needed. It's inherently output focused.

However, the lady designing the factory in the first place should know if tightening bolts or using an arc wielder has more issues. So sure, QA should include checking the oil level inside a robot in the factory to avoid problems in the first place. But QA is not all inclusive it's not for example part of the collage education that's training your workforce other than perhaps a requirement that they have said degree.

[dpark]

I'm not sure what you're trying to get at. Production is output focused.

QA is the system of trying to produce at the desired quality. Anything done to improve quality is QA, including whether you hire better employees or train the ones you have. You can define QA more narrowly if you like, but then we're arguing semantics and we're already off in the weeds.