A systematic approach to managing alterations to a system, project, or process. The process typically includes steps like documenting, evaluating, approving, and implementing changes. The goal is to prevent unnecessary changes, minimize the risk of adverse effects, and ensure that all modifications are traceable and well-documented. This is especially crucial for maintaining the integrity of the environment, as unplanned or unapproved changes can lead to vulnerabilities or inconsistencies that can be exploited by malicious parties.