This IDC study presents the vendor shares for the business rules management systems market for 2009–2011. Revenue and market share of the leading vendors are provided for 2011.

"The business rules management systems market demonstrated healthy growth in 2011 as more users have come to realize the value of this paradigm of application development," says Al Hilwa, program director of Application Development Software research at IDC. "Successful players in this space have done best by cross-selling their technologies to established middleware buyers and aligning them with broader software stacks."