Since its introduction to the research community by Lotfi Asker Zadeh, fuzzy theory has gained a big acceptance in both academia and industry. In today’s world, it is easy to see many diverse applications of the fuzzy concept in science and industry. As everything improves, the fuzzy theory and its applications are also advancing to handle much more complicated problems of our lives. However, in many cases it is not easy to distinguish between problems that actually require a crisp or fuzzy approach in their modeling and solution. Indeed, the boundary between them is also uncertain. What types of problems really require modeling and solution through fuzzy logic? What are these problems and what is “fuzziness” in them? Without properly answering these fundamental questions, application of fuzzy sets and logic will probably not be very helpful in solving problems of our lives.
Turkish Journal of Fuzzy Systems (TJFS) will mainly focus on the determination of problems which can most suitably be handled through a fuzzy systems approach (i.e. fuzziness is their fundamental characteristics) and will provide a unique journal for publishing the recent research on applications, practices, and methodologies of fuzzy sets and systems. The authors must clarify why their problem needs a fuzzy modelling and/or solution approach in their work in order to be considered for TJFS.