Abdullah Khan received the MCA degree from Utter Pradesh Technical University, Lucknow, in 2006. He is currently working as an Associate Professor and Head, in the Department of Computer Application. At Institute of Environment and Management, Lucknow, and pursuing Ph.D. in Software Engineering, from Babu Banarasi Das University. Lucknow, U.P., India. His research interests include Software Testability and Software Quality Estimation. He has written various books and study materials especially for (North Orissa University) Orissa, (Suresh Gyan Vihar University, Jaipur) Rajasthan, (Bharati Vidyapeeth University, Pune) Maharashtra, NAAC Re-ACCREDITED "A" Grade University. He has around 09 years rich teaching experience at UG and PG level. As well as he published numerous, several papers in the National and International Journals and conference proceeding.