Whole Building Design Guide: Sustainable O&M PracticesOne goal of effective O&M is to achieve the intent of the original building design team, i.e., so that building systems deliver services (including the appropriate amount of outside air) to building occupants. O&M is also the discipline through which long-term goals of economy, energy efficiency, resource conservation, and pollution prevention can be achieved, while meeting the comfort, health, and safety requirements of the tenants.