Microsoft BizTalk Server is a business process management server that uses a oeadaptersa to allow it to communicate with a wide variety of different software systems in order to automate and integrate business processes. Fundamental to this process is its ability to map data from one schema of data to another in order to achieve seamless communication. This process is critical to BizTalka (TM)s ability to integrate software systems and a " if badly designed a " can result in crippling performance penalties and code that is neither scalable nor maintainable. This book provides a comprehensive explanation of how the BizTalk Server 2009 mapping system works, the best practices that are in use, and a wide range of solutions to common (and not so common) mapping problems that BizTalk developers will encounter in their professional lives.