Nathan Hartman is an Associate Professor in the Department of Computer Graphics at Purdue University where he currently teaches undergraduate courses in 3D modeling, graphics standards, and product data management. He has also taught graduate courses covering advanced computer graphics technology topics, research methods, and measurement and evaluation. Nathan is Co-Director of the Purdue University Product Lifecycle Management (PLM) Center of Excellence in the Center for Advanced Manufacturing in Purdue's Discovery Park. His research areas include the use of constraint-based CAD tools within the product lifecycle, the development of strategic knowledge in the use of 3D computer graphics tools, 3D data interoperability and exchange, and the use of virtual reality in PLM environments. Professor Hartman holds a Bachelor of Science in Technical Graphics and a Master of Science in Technology from Purdue University, and a Doctor of Education in Technology Education from North Carolina State University.