7th international conference til2019 was held under organization by the Faculty of Mechanical Engineering in Nis, Department of Transport Engineering and Logistics. The title of the til2019 was Smart Logistics in the development of Smart Cities - move toward Industry 4.0. Assist. prof. Marko Periša held keynote lecture on Challenges of assistive technologies implementation into Industry 4.0: A review (authors M. Periša, D. Peraković, P. Zorić).