This book constitutes revised selected and extended papers presented at track 4 of the Conference on Computer Science and Intelligence Systems, FedCSIS 2022, which took place in Sofia, Bulgaria, during September 4–7, 2022. The FedCSIS Information Systems and Technologies Track included AIST 2022, ISM 2022, DSH 2022, and KAM 2022. AIST 2022 received 11 submissions, from which 2 full papers and 1 short paper have been accepted; for ISM  2022 2 full and 3 short papers have been accepted from 15 submissions; and for DSH 2022 2 full and 1 short papers have been accepted from 11 submissions. From the 17 submissions to KAM 2022, no paper passed the extended reviews, so the overall acceptance rate was 20% for full and 18% for short papers.  The papers were organized in topical sections named: Approaches to improving business; approaches to improving society; and methods for improving business and society.

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.

This book constitutes revised selected and extended papers presented at track 4 of the Conference on Computer Science and Intelligence Systems, FedCSIS 2020, which took place in Sofia, Bulgaria, during September 6-9, 2020. The FedCSIS Information Systems and Technologies Track included AIST 2020, DSH 2020, ISM 2020, and KAM 2020. For this track, a total of 29 submissions was received from which a total of 5 full and 3 short papers was accepted for publication in this volume. The papers were organized in topical sections named: improving project management methods; numerical methods of solving management problems; and technological infrastructure for business excellence.