The methodology of multicriterial assessment of Petri nets’ apparatus Dmitry Pashchenko, Dmitriy Trokoz, Galina Sovetkina, Ekaterina Nikolaeva, Michael Sinev, Aleksey Dubravin and Nikolas Konnov MATEC Web of Conferences, 44 (2016) 01009 Published online: 08 March 2016 DOI: 10.1051/matecconf/20164401009