Hi, I just joined the list a few days ago and have looked at this string with interest because of the wisdom and experiences evident in the contributors. Prior to retirement I had been subjected to various manufacturing quality systems as an auditor and an auditee and I can verify that they can give you an appreciation of the myriad ways of screwing things up but cannot in themselves improve quality. I was actually forced to destroy ten years of laboratory data by an auditor whose interpretation was reversed a week later. It is interesting to note that the very thing that makes the information most secure - wide distribution among independent agents - is the same thing that prevents good control of revisions. At the risk of asking questions that were addressed before my enlistment, How would Wikipedia control it? and Why aren't we doing it in Wikipedia? Tim