On the site's own words: "The fifth edition to the most detailed examination of the rapidly growing Online Analytic Processing (OLAP) market, The OLAP Survey 5 is the definitive source of customer intelligence. The OLAP Survey 5 provides an independent and unbiased account of the market's verdict on vendors, products, and corporate project success rates." http://www.survey.com/olap/
To receive a free preview presentation you must fill out a form here.