Just as a healthy body requires a unified set of systems to support growth and strength, a data center functions most effectively when designed with an integrated systems approach from a single source. The standards for design are identified through the tier concept, and those standards then are applied to high-, medium-, and low-voltage infrastructure across the center. ABB embraces a systems approach that couples the full strength of the company’s product portfolio with the talents of its system integrators. As Patrick Komischke illustrates, such an approach ensures the most critical elements are integrated into a robust system from one comprehensive source.