Marketing mix models are a combination of processes and technologies that smart marketers increasingly adopt to understand the business impact of individual elements in their plans. Picking the right technology or vendor begins with knowing the most important features you must consider, understanding the major differences among vendor offerings, and matching capabilities to your company's resources and needs. Marketing leaders who are planning to select a marketing mix model or reevaluate their current tools should read this report to develop a mature approach to a successful selection process. This report was originally released to clients on December 27, 2012, under the title of "Boost Marketing Returns With Model-Driven Insights"; Forrester reviews and updates it periodically for continued relevance and accuracy. We are now updating the report with new information and examples.