Abstract
Management of Change is a process for evaluating and controlling modifications to facility design, operation, organization, or activities – prior to implementation – to be sure no new hazards are introduced. This article does not examine all the issues related to MOC during the life cycle of a plant, but considers only a particular type of changes; therefore we will not discuss how to manage the replacement in kind (RIK), but only those which according to their specific attributes are difficult to manage. There are two very difficult kinds of change to be identified or managed one falls under the category of Reactive Changes and the other is the Emergency Change. This document contains some considerations on the basis of personal experiences, about the possible reasons why the MOC often may fail or can not be handled as for the procedures or theory, taking into account all its characteristics and activities in a systematic way. The article will discuss, starting from the beginning of the life cycle phase of a project about the various issues to face to manage or try to do it with this particular type of changes.
