Isn't that the same thing?
Maybe just a difference of how we use words, but I wouldn't think that is the same thing. At least it didn't mean the same thing to me in my job and the models I made. When I made models that didn't seem to result in reasonable results as I understood the "real world", my first step was to start over and challenge the whole basis of my model. Only if I couldn't find anything wrong there would I spend the time to explore all the ins and outs of why the model got various results. Maybe something different to the folks that predicted negative oil prices....don't know.