Commissioning is the process of verifying and ensuring that a system or equipment is installed, tested, and operated according to its design specifications and requirements. The purpose of commissioning is to ensure that the system or equipment is safe, reliable, and meets the functional requirements of the project. Commissioning typically involves several steps, including: 1). Design And Construction Review 2). Installation Verification 3). Pre Functional Testing 4). Functional Testing 5). Operational Design 6). Documentation And Training Source: Mourad CHETTAH