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Part of the question is does 7.3.6 apply to both process and product designs? I don't have a copy of TS here and I haven't looked at a copy in a while. That's why I said I'd sorta keep out of the discussion - I'm not current. I've taken section 7 as applicable to product design as opposed to process design. It sounds like the auditor finding is a process design aspect and as was note in another post here it sounds like a metrics aspect (e.g.: tracking scrap).