Ejub KajanEjub Kajan teaches at the State University of Novi Pazar and at the Faculty of Electronic Engineering in Niš, Serbia. He holds a PhD and MSc in Computer Science from University of Niš, Serbia, and diploma degree in Electronic Engineering from Universty of Split, Croatia. His current research focuses on e-commerce in general, e-commerce architectures, semantic interoperability, computer networks, and open systems. He has authored over seventy papers, four research books, three chapters in edited books, and four textbooks. He has published in various outlets, including CACM, JGITM, IGI Global books, ACM SIGEcom Exchanges, International Review on Computers and Software, Automatika, etc. He is a Senior Member of the ACM, and a member of IEEE, IADIS, and ISOC. Dr. Kajan is involved in a series of international conferences as a program committee member including, but not limited to prestigious DEXA, WSKS, and IADIS conferences. He also serves on the editorial boards of International Journal of Distributed Systems and Technologies (IJDST) and Journal of Information, Information Technology and Organization (JIITO). In the past, he worked as a software engineer and general manager in the computer industry. Read More Read Less