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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.
