Yeah that sounds like a great interview. How long do you let them go, half an hour, a day? Do you think you can adequately judge someones abilities like this?
I think it was more of a broad sketch of a series of interactions, not a formula for an interview. Someone represents themselves as having some skills because they are certified as having those skills; they are asked to apply those skills; etc...
Your format implies more formality than a normal conversation - I assumed you meant it in terms of an interview too, and if not that, I'm not sure what you were aiming for. I don't see conversations like that outside technical interviews.