To answer the question: 8 April 1971. That was the day that I walked out on the deck to begin training with the U.C. Berkeley Scientific Diving Safety Program.
But isnt that before there was DIR? you ask. Yes, quite is my answer. Lost in the current discussion is the fact that long before cute acronyms there was a long history of diving with a concern for Doing It Right.
Andy Kerslake says, DIR is about reaching team consensus, but always questioning. As far as possible, it's about simplification and an uncompromising attitude towards safety. There's no other complete system that's readily available. All others are based on personal preference, and there are always differences between divers. Most other teams are simply a collection of individuals with different agendas - DIR is totally about the team."
Mr. Kerslake might, if given the chance, want to edit his thought to recognize that there are complete systems, readily available, within the military, commercial and research diving communities that put even the WKPP team concepts to shame.
Speaking of the WKPP, I have a great deal of respect for the WKPP and the folks who made it all happen. I do not believe for a minute, that they could have accomplished what they have without coming to the DIR concept, thats common sense. A team needs to have a standard mode of operation. That drove the development of DIR, problems defined, examined, researched and solved. And self-evidently solved so that they could amass a stupendous record of achievement and safety.
So, if thats so simple, whats all the fuss about? Its a shame that there are no footprints underwater, for if there were, the DIR folks would see that theyre not breaking new ground. Rather they seem to have suffered triple light failure <G> and are feeling around in the dark on a trail that was blazed half a century ago and has been moderately well traveled ever since.