Istvan Forgacs PhD. was originally a researcher at the Hungarian Academy of Sciences. He published 25+ scientific articles in leading international journals and conference proceedings. He is the co-author of the books Practical Test design and Agile Testing Foundations, An ISTQB Foundation Level Agile Tester guide. His research interests include test design, agile testing, model-based testing, debugging, code comprehension, static and dynamic analysis. He is the founder and co-CEO of 4TestDev. He is a member of Agile WG of ISTQB.