The data center is the technology hub of modern enterprise operations. The data center provides the critical technology infrastructure needed to provide resources and services to employees, partners and business services around the world. A small or medium-sized business can implement a useful "data center" in the confines of a closet or room with little, if any, modification, but large ones require a large dedicated space that is carefully designed. From space, power, cooling, management, reliability and security of the information infrastructure need to support technology. As a result, the data center represents the largest and most profitable business, both from an investment point of view and from a recurring operational operations point of view. Business and information technology must pay close attention to data center design and construction issues to ensure that it captures the leader, business needs throughout the evolving life cycle and changing business conditions.