Theses Ph.D. in Computer Science in the area of Software Engineering at the Department of Information Systems and Technologies, FON - School of Business Administration, University of Belgrade, Serbia (2007. - 2010.). Thesis: “Modeling Rule-Driven Service Oriented Architectures” - . Supervised by Prof. Dragan Gašević and Academician Prof. Vladan Devedžić. Work on the thesis done in collaboration with Athabasca University, Canada and Brandenburg University of Technology Cottbus-Senftenberg. M.