Sinan Si Alhir is an agile practitioner (consultant, mentor/coach/educator/trainer, conference speaker, and author). He has over two decades of experience in all aspects of product management and product development. With a proven performance record in aligning business and technology using industry-recognized and organization-tailored lean principles, agile practices, and other best practices, he focuses on transforming organizations by cultivating effective Communities of Practices (CoPs). He is deeply committed to working with individuals, teams, and organizations to actualize their potential and achieve an enduring competitive advantage. He is the author of UML in a Nutshell, Guide to Applying the UML, Learning UML and articles on the Unified Modeling Language (UML) and Unified Process (UP) in the Encyclopedia of Software Engineering among other publications. He commonly speaks at various professional events (conferences and user groups).