This book constitutes revised selected and extended papers presented at track 4 on "Advances in Information Systems and Technologies" of the Conference on Computer Science and Intelligence Systems, FedCSIS 2021, which was held online during September 2–5, 2021. The FedCSIS Track 4 included AIST 2021, DSH 2021, ISM 2021, and KAM 2021. For this track, a total of 30 submissions was received from which a 7 full papers and 1 short papers were accepted for publication in this volume. The papers were organized in topical sections named as follows: Approaches to improving management systems; solutions to social issues; methods for supporting business and society.