1. Lviv Polytechnic National University,Management and International Business Department,Lviv,Ukraine
2. Lviv Polytechnic National University,Lviv,Ukraine
3. Lviv Polytechnic National University,Information Systems and Networks Department,Lviv,Ukraine
4. West Ukrainian National University,Software Engineering Department,Ternopil,Ukraine
5. National Technical University “Kharkiv Polytechnic Institute”,Department of Accounting and Finance,Kharkiv,Ukraine