Salapura Saša, University PIM, Faculty of Computer Science, Banja Luka, Bosnia and Herzegovina sasa.salapura@gmail.com Volume 1, No. 1, May 2019.

Vukić Nevena, University of Novi Sad, Faculty of Technology Novi Sad, Novi Sad, Serbia. nevenavukic@uns.ac.rs Volume 1, No. 1, May 2019.

Teofilović Vesna, University of Novi Sad, Faculty of Technology Novi Sad, Novi Sad, Serbia.vesnateofilovic@uns.ac.rs Volume 1, No. 1, May 2019.