Nonmedical Medical Mathematical modeling +(Often) Generally not available Evaluation of performance in use Controlled use/ Clinical trial instrumented Assessment of value Exceeds safety factor Benefit/risk (Threshold risk Engineering disciplines Aero, chem., civil, Biomedical Engineering responsible for product at'l. mech. etc Nonengineering responsi None Ph rysiclan Consumer Varied Physician Consumer education Variable Role of marketing Tech Tech spec. ( ? aesthetIcs Cost as an issue Cost per Low HighNonedical Medical Mathematical modeling + (Often) Evaluation of performance in use Controlled use/ Assessment of value Engineering disciplines responsible for product Nonengineering responsibility Consumer Consumer education Role of marketing Cost as an issue Cost per pound instrumented Exceeds safety factor (Threshold risk) Aero., chem., civil, mat'l., mech, etc. None Varied Variable Tech. spec./ aesthetics + Low Generally not available Clinical trial Benefit/risk Biomedical Engineering Physician Physician Variable Tech. spec. (?) + High