corrective maintenance (ker-ek`tiv mân'te-nens) noun The process of diagnosing and correcting computer problems after they occur. Compare preventive maintenance.
preventive maintenance (pre-ven`tiv mân'te-nens) noun Routine servicing of hardware intended to keep equipment in good operating condition and to find and correct problems before they develop into severe malfunctions.
-- We can never have enough of nature. We need to witness our own limits transgressed, and some life pasturing freely where we never wander.