Health technology: any set of medications, devices, and medical and surgical procedures used in health care, as well as the organisational and support systems within the context of which said care is delivered.
Obsolete health technology: any health technology in use for one or more indications, whose clinical benefit, safety or cost-effectiveness has been significantly superseded by other available alternatives.
Potentially obsolete health technology: any technology identified in any one of a number of ways which appears to have been superseded by other available alternatives and whose possible obsolescence should be rigorously assessed.
Health technology assessment: a form of research that examines the clinical, financial and social consequences, including any short- and medium-term consequences, as well as any direct, indirect, desired and undesired effects stemming from the use of any given technology.
Ineffective technology: any technology that has failed to demonstrate scientifically its usefulness for a specific indication.