On Thu, Mar 1, 2018 at 2:06 PM, Tim Cross <theophil...@gmail.com> wrote:
> +1. And a good test of your underlying data model is whether you can > identify a natural primary key. If you can't, chances are your model is > immature/flawed and needs more analysis. > https://en.wikipedia.org/wiki/All_models_are_wrong Unfortunately identifying a natural primary key doesn't guarantee that one's model is mature, unblemished, and complete - the model writer may just not know what they don't know. But they may know enough, or the application is constrained enough, for it to be useful anyway. David J.
