Preface to the PoEM’2022 Workshops and Models at Work Proceedings Dominik Bork1 , Souvik Barat2 1 TU Wien, Business Informatics Group, Vienna, Austria 2 Tata Consultancy Service Research, Pune, 411013, India PoEM 2022 is the 15th IFIP WG 8.1 working conference on the Practice of Enterprise Modelling. This working conference aims to improve the understanding of the practice of Enterprise Modelling by offering a forum for sharing experiences and knowledge between the academic community and practitioners from industry and the public sector. In the 2022 edition, the special focus was on Enterprise Modeling and Model-based Development and Engineering. PoEM 2022 took place from 23rd to 25th of November. It was organized by Balbir Barn and Kurt Sandkuhl and held as a physical conference at Middlesex University in London, UK. Following its tradition, PoEM 2022 also offered the possibility to co-locate workshops. We received two workshop proposals which were accepted. The 3rd International Workshop on Blockchain and Enterprise Systems (BES) organized by Petra Maria Asprion, Alessandro Marcelletti, Andrea Morichetta, and Bettina Schneider; and the 1st International Workshop on Digital Twin Engineering organized by Vinay Kulkarni, Ruth Breu, Philipp Zech, and Souvik Barat. These proceedings are composed of all accepted papers of the two workshop with one additional paper that originated from the Models at Work1 initiative and which has been presented at PoEM 2022. The 1st International Workshop on Digital Twin Engineering received five submissions out of which five have been accepted. The 3rd Workshop on Blockchain and Enterprise Systems (BES) received five submissions out of which five have been accepted. We want to thank all workshop organizers for proposing their workshop and taking care of all the paper management and workshop execution processes involved. These workshops form a interesting and valuable complement to the scientific program of PoEM as they allow for presenting premature and innovative ideas that trigger discussions and might lead to collaborations and, eventually, PoEM papers. We further want to thank Balbir Barn and Kurt Sandkuhl, the general chairs of PoEM 2022, for the honour and pleasure of organizing the workshops. Dominik Bork and Souvik Barat PoEM’2022 Workshops and Models at Work Papers, November 23-25, 2022, London, UK $ dominik.bork@tuwien.ac.at (D. Bork); souvik.barat@tcs.com (S. Barat)  0000-0001-8259-2297 (D. Bork); 0000-0002-4677-1957 (S. Barat) © 2022 Copyright for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 International (CC BY 4.0). CEUR Workshop Proceedings CEUR Workshop Proceedings (CEUR-WS.org) http://ceur-ws.org ISSN 1613-0073 1 https://www.models-at-work.org/, last accessed: 18.11.2022