Hans Schaefer is an independent consultant in software testing in Norway. He is president of the Norwegian Testing Board. He has been consulting and teaching software testing methods since 1984. He organizes the Norwegian Special Interest Group in Software Testing for Western Norway. His work emphasis is on consulting, teaching, and coaching test process improvement and test design techniques, as well as reviews.
Category Archives: Testing Foundations
Andreas Spillner
Prof. Dr. Andreas Spillner has been working in the field of software development and testing, in practice and research for almost 40 years. He retired in March 2017. His teaching area at the University of Applied Sciences Bremen was software technology with a focus on quality assurance and programming. Prof. Dr. Spillner is a Fellow of the “Gesellschaft für Informatik e.V. (GI)“, founding member of the “German Testing Board e.V.” and was the founder and spokesman of the special interest group “Test, Analysis and Verification of Software” of the GI. He is author or co-author of books (“Software Testing Foundations“, “Lean Testing für C++ – Programmers (only in German), …) and magazines. He has held numerous publications in journals and lectures at international and national conferences, as well as seminars.
Tilo Linz
Tilo Linz is co-founder and managing director of imbus AG, a leading provider of software testing and quality assurance solutions for more than 20 years. He is founder of the German Testing Board and a founding member of the ISTQB, where he has contributed widely to the national and international promotion of education and training in this field. He is co-author of Software Testing Foundations (also published by
Rocky Nook and now in its 4th edition) – one of the most successful and widely-read books on the subject.