You'd need the designers to work alongside docs actually in process of seeing patients--too much of these programs require a "yes/no" instead of "something else entirely"--protocols are fine to a point, but too many patients have too many things wrong with them at the same time--and they are not geared to the treatment of the complex elderly patient.
You are probably right. Our IT group uses precanned applications from software vendors. Chances are the stuff is already designed, outside of minor customization before being installed. I don't get into the clinical stuff very much, so I don't know for sure.