enâ²erÂ·vaâ²tor n. Usage Note: Sometimes people mistakenly use enervate to mean to invigorate or to excite by assuming that this word is a close cousin of the verb energize. In fact enervate does not come from the same source as energize (Greek energos, active). It comes from Latin nervus, sinew..
Also found in: Dictionary, Acronyms, Encyclopedia, Wikipedia. review of systems (ROS) (in a health history) a system-by-system review of the body functions. The ROS is begun during the initial interview with the patient and completed during the physical examination, as physical findings prompt further questions. Questions about family or personal history are included in each section.
Decision Support Systems. A Decision Support System, or DSS, is a specialized information system specifically designed to facilitate the decision making process in the operations of organizations. Compared to other types of information systems, a DSS is typically used when a problem is unstructured or when circumstances are difficult to predict. A DSS may include other types of systems. For example, a database management system (DBMS) is often part of a DSS in order to have access to the necessary data. However, a DSS is more than a DBMS since it provides a structure to facilitate the process of making decisions.