Combining a proprietary panel of more than 50,000 senior IT buyers with our robust data-collection methodologies, 451 Research's Voice of the Enterprise: Datacenter Transformation tracks and analyzes the disruption occurring in the market today and exposes the major opportunities for enterprises, IT vendors, suppliers and investors. The study represents more than 1,000 completes of a web-based survey, completed by IT and datacenter facilities decision-makers worldwide, primarily based in North America and Europe, and supplemented by 20 in-depth, phone-based interviews. The sample is representative of small, medium, large and very large organizations in both the private and public sectors. In addition to regular quarterly topics, the survey focuses on evaluations of colocation vendors both prior to purchase and after implementation. This includes the 451 Research Vendor Window, which plots enterprise adoption as well as Promise and Fulfillment indices that compare vendors' effectiveness at both marketing and execution. The Vendor Promise Index is designed to measure the perception of a vendor prior to purchase, while the Vendor Fulfillment Index is designed as a measure of execution effectiveness around service delivery and product performance post implementation. The study also looks at IT infrastructure and datacenter facility spending trends, datacenter building plans and workload deployment locations.