Tomaž Berlec, Ph.D. is an assistant professor at the Faculty of Mechanical Engineering, University of Ljubljana. He earned his M.Sc. degree in 2003 and Ph.D. degree in 2008 in the field of production planning and control. His research fields include lean production, agile and leagile production, simulation, project management, material and information flow optimization, the lead time optimisation of operations and orders, and production planning and control.