I love the restaurant analogy - it has great resonance especially if you consider cost of making it right. If I order a Lasagne and get spaghetti meatballs, i

I love the restaurant analogy - it has great resonance especially if you consider cost of making it right. If I order a Lasagne and get spaghetti meatballs, i think that's a big and i expect to be fixed. If I order Lasagne and get Beef Lasagne when Inamna vegetarian then I still think it's a big, but the failure is not immediately in the kitchen - why did the waiter not check, if I am wearing dungarees and a a Tee Shirt saying "Die all meat eaters" should that be a clue? And what about the kitchen response - we all like the restaurant that apologises and comps the food for free. But we would be a bit surprised if we were told the Beef Lasagane was not going to be refunded and we had to pay again to get the veggie one. But all those models exist in software.