S.A. KELKAR, Ph.D. (Michigan, USA), is an Adjunct Professor at the National Institute of Industrial Engineering, Mumbai. Earlier, he was an Adjunct Professor in the Department of Computer Science and Engineering, and Shailesh J. Mehta School of Management, Indian Institute of Technology Bombay, Mumbai. At present he also works as a Professor of Computer Engineering, at KKWIER, Nashik. He has over 40 years of teaching experience in the field of software technology, information systems, and research methodology. Earlier he taught as a full timer at IITB, Mumbai, NIBM, Mumbai, and NITIE, Mumbai. His industry experience comes from TCS, Aptech, and Voltas. He has also been a visiting faculty for thirty years for several programs conducted by Tata Institute of Social Sciences, Mumbai.