Commissioning is the process of ensuring that a newly constructed or renovated building or system operates as intended. This involves a series of tests, inspections, and adjustments to verify that all components, such as HVAC systems, plumbing, and electrical systems, function correctly and efficiently. The goal is to identify and resolve any issues before the building is occupied. The commissioning process typically begins during the design phase and continues through construction and into the operational phase. It often includes documentation and training for the building's operators to ensure they understand how to maintain and manage the systems effectively, promoting long-term performance and energy efficiency.