A Personal Learning Environment (PLE) is a self-defined collection of services, tools, and devices that help learners build their Personal Knowledge Networks (PKN), encompassing tacit knowledge nodes (i.e. people) and explicit knowledge nodes (i.e. information).
Dr.rer.nat. Mohamed Amine Chatti is a Senior Computer Sciencist at Informatik 9 (Learning Technologies), RWTH Aachen University, Germany. He has a diploma degree in computer science from the Technical University of Kaiserslautern, Germany, in 2004 and a PhD degree in computer science from RWTH Aachen University, Germany, in 2010. His research focuses on Web Information Systems, Technology Enhanced Learning, Data Science, and Knowledge Management.