Home > Authors

Rajesh K. Tyagi

Dr. Rajesh Kumar Tyagi joined HEC Montreal as an Assistant Professor of Logistics and Operations Management in June 2008. Earlier, Dr. Tyagi was a faculty member at the Department of Management, College of Commerce, DePaul University. Professor Tyagi teaches Service Operations, Operations Management, and Quality Management. Dr. Tyagi has also taught service operations and operations management at Kellogg School of Management, at Northwestern University, and in East Europe and Southeast Asia. His current research and consulting interests are in areas of service delivery chain design, service performance management, measurement of service quality, Six Sigma applications in the services sector, and design of a reverse supply chain. He has more than 12 publications in scientific and technology journals and has presented at various national and international conferences. He is the co-author of Six Sigma for Transactions and Service.


Professor Tyagi also co-founded a biomedical device manufacturing company in Singapore. Professor Tyagi is a consultant to an early-stage venture fund and also consults on operations and technology management issues for early-stage companies and established corporations. He obtained his Ph.D. in Engineering at the University of Ottawa, Canada, and his MBA from the Kellogg School of Management, Northwestern University.


Praveen Gupta, president of Accelper Consulting (www.accelper.com), developed the Six Sigma Business Scorecard that has been recognized worldwide for its innovative approach to corporate performance, ease of implementation, and importance to sustained profitable growth. Praveen has also developed a Business Innovation framework, and pioneered the Six Sigma methodology at Motorola, and the 4P Model for process management. Integration and adaptation of these methods to service operations have been addressed in continuing work for sustaining profitable growth and creating success opportunities for leadership and employees.

Praveen’s experience at working with dozens of companies in the manufacturing, service, and software industries has given him a uniquely holistic perspective on business performance. Praveen teaches his methods and tools at Illinois Institute of Technology and at DePaul University to graduate students in the IT and Management departments.


Praveen has led several organizations in improving their operations and financial performance using Business Scorecard, Six Sigma, Business Innovation, and the 4P model. He frequently speaks in conferences and seminars around the world.


Praveen holds BS and MS degrees from Indian Institute of Technology, Roorkee, and Illinois Institute of Technology, respectively. Prior to founding his consulting company, Praveen worked at Motorola and AT&T Bell Laboratories.


Besides his books on scorecards, Praveen has authored Business Innovation in the 21st Century, Stat Free Six Sigma, Improving Healthcare Quality and Cost with Six Sigma, and The Six Sigma Performance Handbook. Praveen regularly writes for various publications and is the Editor of the International Journal of Innovation Science being launched in 2009.