Publications
Conference Publications (Peer Reviewed)
  1. Härer, Felix (2025): Specification and Evaluation of Multi-Agent LLM Systems – Prototype and Cybersecurity Applications, in: 2025 International Conference on Cybersecurity and AI-Based Systems (Cyber-AI 2025), September 1-4, 2025, Varna, BG, pp. 340-347. DOI: 10.1109/Cyber-AI66431.2025.11233474. PDF
  2. Sriganthan, Kapischan, Härer, Felix (2025): An Adaptive Phishing Awareness Training Environment Based on LLMs and Interactive Learning, in: 2025 IEEE 9th Forum on Research and Technologies for Society and Industry (RTSI 2025), August 24-26, 2025, Tunis, TN, pp. 362-365. DOI: 10.1109/RTSI64020.2025.11212360. PDF
  3. Härer, Felix, Agostinis, Noah (2025): From Machine Learning to Federated Knowledge Systems – Current Challenges and Future Architectural Directions for Cybersecurity Applications, in: Proceedings of Digitalization and Management Innovation 2025 (DMI 2025), July 7-9, 2025, Hong Kong. IOS, Frontiers in Artificial Intelligence and Applications, Vol. 412. DOI: 10.3233/FAIA250724. PDF
  4. Fill, Hans-Georg, Härer, Felix, Vasic, Iva, Borcard, Daniel, Reitemeyer, Benedikt, Muff, Fabian, Curty, Simon, Bühlmann, Marcel (2024): CMAG: A Framework for Conceptual Model Augmented Generative Artificial Intelligence: ER Forum 2024, 43rd International Conference on Conceptual Modeling (ER 2024), October 28-31, 2024, Pittsburgh, PA, US. PDF
  5. Härer, Felix (2023): Conceptual Model Interpreter for Large Language Models: ER Forum 2023, 42nd International Conference on Conceptual Modeling (ER 2023), November 6-9, 2023, Lisbon, PT. PDF
  6. Härer, Felix (2023): Scalable Model-Based Decentralized Applications in the Cloud Using Certificates and Blockchains (Best Paper Award), in: IEEE International Conference on Public Key Infrastructure and its Applications (PKIA 2023), Sept. 8-9, 2023, Bangalore, IN. DOI: 10.1109/PKIA58446.2023.10262768. PDF
  7. Härer, Felix (2022): Executable Models and Instance Tracking for Decentralized Applications - Towards an Architecture Based on Blockchains and Cloud Platforms, in: 3rd International Workshop on Blockchain and Enterprise Systems (BES 2022) at Practice of Enterprise Modeling 2022 (PoEM 2022), November 23, 2022, London, UK. CEUR-WS.org, Vol. 3298. PDF
  8. Härer, Felix (2022): Towards Interoperability of Open and Permissionless Blockchains: A Cross-Chain Query Language, in: Proceedings of the IEEE 2022 International Conference on E-Business Engineering (IEEE ICEBE 2022), October 14-16, 2022, Bournemouth, UK. PDF
  9. Curty, Simon, Härer, Felix, Fill, Hans-Georg (2022): Blockchain Application Development Using Model-Driven Engineering and Low-Code Platforms: A Survey, in: Enterprise, Business-Process and Information Systems Modeling. BPMDS EMMSAD 2022. Lecture Notes in Business Information Processing, vol 450. Springer, Cham. DOI: 10.1007/978-3-031-07475-2_14. PDF
  10. Camozzi, Giorgio, Härer, Felix, Fill, Hans-Georg (2022): Multidimensional Analysis of Blockchain Data Using an ETL-based Approach, in: Wirtschaftsinformatik 2022, Proceedings. 28 (WI 2022). PDF
  11. Muff, Fabian, Härer, Felix, Fill, Hans-Georg (2022): Trends in Academic and Industrial Research on Business Process Management - A Computational Literature Analysis, in: Proceedings of the 55th Hawaii International Conference on System Sciences (HICSS-55), Towards the Future of Enterprise Systems Track. DOI: 10.24251/HICSS.2022.874. PDF
  12. Curty, Simon, Härer, Felix, Fill, Hans-Georg (2021): Towards the Comparison of Blockchain-based Applications Using Enterprise Modeling, in: Proceedings of the ER Demos and Posters 2021 co-located with 40th International Conference on Conceptual Modeling (ER 2021), CEUR-WS.org, Vol. 2958. PDF
  13. Fill, Hans-Georg, Härer, Felix, Muff, Fabian, Curty, Simon (2021): Towards Augmented Enterprise Models as Low-Code Interfaces to Digital Systems, in: Shishkov, Boris (Ed.): Business Modeling and Software Design - 11th International Symposium, BMSD 2021, Sofia, Bulgaria, July 5–7, 2021, Springer. Springer
  14. Härer, Felix, Fill, Hans-Georg (2020): Past Trends and Future Prospects in Conceptual Modeling - A Bibliometric Analysis, 39th International Conference on Conceptual Modeling (ER 2020) (full paper acceptance Rate 18.8%), November 3-6, 2020, Vienna, Austria. DOI: 10.1007/978-3-030-62522-1_3. PDF
  15. Fill, Hans-Georg, Härer, Felix (2020): Supporting Trust in Hybrid Intelligence Systems Using Blockchains, in: Proceedings of the AAAI 2020 Spring Symposium on Combining Machine Learning and Knowledge Engineering in Practice (AAAI-MAKE 2020), Stanford University, CEUR Proceedings 2600. PDF
  16. Fill, Hans-Georg, Härer, Felix (2020): Usage Scenarios for Blockchain Technologies in the Domain of Civil Law Notaries, in: International Trends in Legal Informatics, Editions Weblaw, Bern. Weblaw
  17. Fill, Hans-Georg, Härer, Felix (2020): Storing and Attesting Conceptual Models on Blockchains, in: Modellierung 2020 Short, Workshop and Tools & Demo Papers, CEUR-WS.org, Vol. 2542, p. 51-52. PDF
  18. Härer, Felix, Fill, Hans-Georg (2019): Decentralized Attestation of Conceptual Models Using the Ethereum Blockchain, 21st IEEE International Conference on Business Informatics (IEEE CBI), July 15-17, 2019, Moscow, Russia. DOI: 10.1109/CBI.2019.00019. PDF
  19. Härer, Felix, Fill, Hans-Georg (2019): A Comparison of Approaches for Visualizing Blockchains and Smart Contracts, in: Jusletter IT Weblaw, 21 Fab. 2019, ISSN: 1664-848X. PDF
  20. Fill, Hans-Georg, Härer, Felix (2018): Knowledge Blockchains: Applying Blockchain Technologies to Enterprise Modeling. in: Proceedings of the 51st Hawaii International Conference on System Sciences (HICSS-51). Waikoloa Village, Hawaii, USA, pp. 4045–4054. DOI: 10.24251/HICSS.2018.509. PDF
  21. Härer, Felix (2018): Decentralized Business Process Modeling and Instance Tracking Secured by a Blockchain. in: Proceedings of the 26th European Conference on Information Systems (ECIS 2018) (full paper acceptance Rate 29%), Portsmouth, UK. PDF
  22. Glässner, T., Heumann, F., Keßler, L., Härer, F., Steffan, A., Fill, Hans-Georg (2017): Experiences from the implementation of a structured-entity-relationship modeling method in a student project. in: 1st International Workshop on Practicing Open Enterprise Modeling within OMiLAB (PrOse 2017) co-located with 10th IFIP WG 8.1 Working Conference on the Practice of Enterprise Modelling (PoEM 2017). Leuven, Belgium. PDF
Journal Publications (Peer Reviewed)
  1. Curty, Simon, Härer, Felix, Fill, Hans-Georg (2023): Design of Blockchain-Based Applications Using Model-Driven Engineering and Low-code/No-code Platforms: a structured literature review, Software and Systems Modeling (IF 2.0). DOI: 10.1007/s10270-023-01109-1. PDF
  2. Härer, Felix, Fill, Hans-Georg (2022): Decentralized Attestation and Distribution of Information Using Blockchains and Multi-Protocol Storage, IEEE Access (IF 3.5), Vol 10, pp. 18035-18054. DOI: 10.1109/ACCESS.2022.3150356. PDF
  3. Härer, Felix (2020): Process Modeling in Decentralized Organizations Utilizing Blockchain Consensus, Enterprise Modelling and Information Systems Architectures (EMISAJ) – International Journal of Conceptual Modeling, Vol. 15. DOI: 10.18417/emisa.15.13. PDF
  4. Härer, Felix, Fill, Hans-Georg (2020): Blockchain-basierte Attestierung von Identitäten und Dokumenten, in: Jusletter IT Weblaw, February 2020, ISSN: 1664-848X. PDF
Habilitation Thesis, Book Publication of the Dissertation, and Book Chapters
  1. Härer, Felix (2025): Secure Architectures for Distributed and Decentralized Applications: Towards Resilient Systems and Applications. Habilitation Thesis. University of Fribourg, Switzerland. Swisscovery.
  2. Härer, Felix (2019): Integrierte Entwicklung und Ausführung von Prozessen in dezentralen Organisationen. Ein Vorschlag auf Basis der Blockchain. ISBN 9783863096823. University of Bamberg Press, Germany. DOI: 10.20378/irbo-55721.
  3. Fill, Hans-Georg, Härer, Felix (2020): Sicherung des intellektuellen Kapitals mit Knowledge Blockchains, in: Blockchain - Grundlagen, Anwendungsszenarien und Nutzungspotenziale (Edition HMD). Springer Vieweg, Wiesbaden, p. 317-335. DOI: 10.1007/978-3-658-28006-2_15.
  4. Fill, Hans-Georg, Härer, Felix, Meier, Andreas (2020): Wie funktioniert die Blockchain?, in: Blockchain - Grundlagen, Anwendungsszenarien und Nutzungspotenziale (Edition HMD). Springer Vieweg, Wiesbaden, p. 3-29. DOI: 10.1007/978-3-658-28006-2_1.
  5. Härer, Felix (2020): Kryptowährungen, In: Blockchain kompakt: Grundlagen, Anwendungsoptionen und kritische Bewertung. Springer Vieweg, Wiesbaden, 2020, p. 32-49, DOI: 10.1007/978-3-658-27461-0.
  6. Härer, Felix, Steffan, Andreas, Herz, Alan (2016): Fallstudienbasierte Einführung von SOM. in: Geschäftsprozessorientierte Systementwicklung. Springer, Wiesbaden. DOI: 10.1007/978-3-658-14826-3.
Editorials, Conference and Workshop Organization
  1. Bouraga, Sarah, Härer, Felix, Marcelletti, Alessandro (2026): Conceptual and Technical Engineering of Blockchain-based Information Systems, Special Issue, Information Systems, Vol. 140, Elsevier. Elsevier
  2. Assar, Saïd, Koutsopoulos, Georgios, Ralyté, Jolita, Zdravkovic, Jelena, Fill, Hans-Georg, Wautelet, Yves, Ruiz, Marcela, Serral Asensio, Estefanía, Härer, Felix, Polini, Eva, Gutschmidt, Anne, Rychkova, Irina, Stirna, Janis (2026): Business Case & Tool Forum, Companion Proceedings of the 18th IFIP Working Conference on the Practice of Enterprise Modeling (PoEM 2025), CEUR Workshop Proceedings, Vol. 4171. URN: urn:nbn:de:0074-4171-x. CEUR-WS
  3. Marcelletti, Alessandro, Bouraga, Sarah, Härer, Felix (2026): 2nd International Workshop on Blockchain for Information Systems Engineering (BC4ISE), at: 38th International Conference on Advanced Information Systems Engineering (CAiSE 2026), June 8-12, 2026, Verona, IT. Proceedings in: Advanced Information Systems Engineering Workshops, Lecture Notes in Business Information Processing, Vol. 586, Springer. Springer
  4. Marcelletti, Alessandro, Bouraga, Sarah, Härer, Felix (2025): 1st International Workshop on Blockchain for Information Systems Engineering (B4ISE), at: 37th International Conference on Advanced Information Systems Engineering (CAiSE 2025), June 16-20, 2025, Vienna, AT. Proceedings in: Advanced Information Systems Engineering Workshops, Lecture Notes in Business Information Processing, Vol. 556, Springer. Springer
  5. Marcelletti, Alessandro, Härer, Felix, Bouraga, Sarah, Amaral de Sousa, Victor (2024): International Workshop on Blockchain for Information Systems (BC4IS24) and 4th International Workshop on Blockchain for Trusted Data Sharing (B4TDS), at: 36th International Conference on Advanced Information Systems Engineering (CAiSE 2024), June 3-7, 2024, Limassol, CY. Proceedings in: Advanced Information Systems Engineering Workshops, Lecture Notes in Business Information Processing, Vol. 521, Springer. Springer
  6. Morichetta, Andrea, Buchmann, Robert Andrei, Sandkuhl, Kurt, Seigerroth, Ulf, Kirikova, Marite, Møller, Charles, Forbrig, Peter, Gutschmidt, Anne, Ghiran, Ana-Maria, Marcelletti, Alessandro, Härer, Felix, Re, Barbara, Johansson, Björn (2023): 3rd International Workshop on Blockchain for Trusted Data Sharing (B4TDS), Joint Proceedings of the BIR 2023 Workshops and Doctoral Consortium, International Conference on Perspectives in Business Informatics Research (BIR 2023), CEUR Workshop Proceedings, Vol. 3514. URN: urn:nbn:de:0074-3514-0. CEUR-WS
Developed Prototypes (Selected)