Don Levan, Psy.D., is president of Vanguard Custom Software, LLC., a New York City FileMaker consulting firm. Dr. Levan is a FileMaker Certified Developer and a licensed Clinical Psychologist. Vanguard's mission is to "create simple applications that solve complex problems." They incorporate software development best practices, interaction design, and cognitive psychology to create data driven applications and Web sites that are efficient for business and easy for people. http://vanguardcs.net don@vanguardcs.net