Generally speaking, a digital twin is a virtual representation that serves as the virtual counterpart of a physical entity with real-time synchronization between the physical and the virtual parts. In particular, digital twins aggregate data generated in the physical world, enable experimenting with this data in the simulations of assets, and provide insights that may be deployed back to the physical world. Digital twins are increasingly being developed in multiple domains, and haves the potential to impact industry and society in different ways. They are considered to be the core of the Industrial Internet of Things as well as the next generation of cyber-physical systems. In particular, they have been identified as the top priority emerging technology by the IEC and ISO Joint Technical Committee and as the top trend for driving digital innovation by Gartner.

However, fundamental methodological and technical challenges remain, motivating academic research and collaboration between industry and academia.

The 2^nd International Workshop on Digital Twin Architecture (TwinArch) will provide researchers and practitioners with a forum to exchange ideas and experiences in the field of digital twins from the perspective of software architecture.

Topics of interest include but are not limited to

Software Architecture Description for and with Digital Twins:

• Architectures of digital twins, including digital threads and digital shadows;
• Architectures for cyber-physical systems with digital twins;
• Integration of multiple stakeholders’ concerns into the software architecting process of digital twins
• AI in the architecture of digital twins, e.g., AI for generating simulation models for digital twins;
• Case studies involving simulations to guide the development of system architecture.

From Software Architecture Models to Executable Simulation Models:

• (Semi-)formal approaches supporting architecture models with digital twins at design time / run time;
• Approaches for (semi-) automatically creating simulation models from architecture;
• Architecture frameworks for the development of digital twin architectures from multiple viewpoints;
• Case studies involving simulations to guide the systems architecture development.

Digital Twins for Adaptive Systems / Software Architectures:

• Software architecture practices to support adaptations;
• AI technologies for adaptation (e.g., case-based-reasoning, reinforcement learning);
• Cognitive digital twins;
• Case studies of adaptive architectures.

Digital Twins and Continuous Engineering Practices:

• Runtime verification of systems with digital twins;
• Monitoring the quality of systems using digital twins;
• Self-validation of digital twins;
• Case studies of continuous engineering using digital twins.

• (09:00 – 09:10) Welcome and foreword
• (09:10 – 10:10) Keynote by Dr Pablo Antonino (Fraunhofer IESE) on Continuous Architecture Evaluation with Digital Twins and Simulations
• (10:10 – 10:30) Paper Towards an Urban Digital Twins Continuum Architecture (L. Toro-Gálvez, S. Laso, J. Berrocal, J. Troya, C. Canal and JM Murillo)
• (10:30 – 10:50) Coffee Break
• (10:50 – 11:10) Paper Network Digital Twins: Towards a Holistic Reference Architecture (R. Verdecchia, L. Scommegna, E. Vicario and T. Pecorella)
• (11:10 – 11:30) Paper A Model-Driven Approach for Continuous Performance Management of Business Processes (S. Giussani, D. Perez-Palacin, M. Caporuscio and F. Edrisi)  
• (11:30 – 12:30) Workshop Participants Discussion about The Role of Digital Twins in Enabling Continuous Engineering Practices in Architecting Software Intensive Systems.
• (12:30 – 14:00) Lunch Break
• (14:00 – 14:20) Paper An Expert Survey on the Use of Informal Models in the Automotive Industry (D. Fuchß, T. Kühn, J. Pfeiffer, A. Wortmann and A. Koziolek)
• (14:20 – 14:40) Paper A Digital Twin for Predictive Maintenance: Electric Motor Case Study (E. Akalp, H. Marah, F. Bozyiğit, M. Challenger and E. Karaarslan)
• (14:40 – 15:00) Paper Architecture for Digital Twin-based Reinforcement Learning Optimization of Cyber-Physical Systems (E. Modrakowski, N. Braun, M. Hajnorouzi, A. Eich, N. Javaheri, R. Doornbos, S. Moritz, JW. Bikker and R. van Beek)
• (15:00 – 15:20) Coffee Break
• (15:20 – 16:30) Workshop Participants Discussion about Emerging Domains, Challenges (scientific and Industrial), and Directions on Digital Twins for Software Architecture.
• (16:30 – 16:45) TwinArch 20203 Closing Remarks
• (18:00 – 22:00) Workshop Dinner

Discussion Orientation Slides available here: https://oc.iese.de/index.php/s/zJr3lGVNDV2JJ4L

Author‘s Schedule (2023) | Important Dates:

• Paper submission: June 30, 2023 Extended to July 7, 2023
• Author notification: July 28, 2023
• Camera-ready paper: August 4, 2023

All submissions will be peer-reviewed by at least three members of the program committee.

They will be evaluated based on originality, contribution to the field, technical and presentation quality, and relevance to the workshop.

Please consider the following page limits:

• 12 pages for full research papers in LNCS format + 2 extra pages for references;
• 8 pages for short research papers in LNCS format + 2 extra pages for references;
• 8 pages for industry papers as case studies + 2 extra pages for references

Call for Papers

Papers are to be submitted using EasyChair : https://easychair.org/my/conference?conf=ecsa2023

ECSA 2023 will use a two-step process for workshop proceedings. Online proceedings (available before the start of the conference) will include all papers accepted to the workshops and will be published online on the ECSA 2023 web page (no proceedings). Accepted papers will be accessible only by the ECSA 2023 workshop participants and the format should conform to LNCS (see the ECSA 2023 submission format).

Selected and extended papers of the workshops will be published in a Springer LNCS volume (up to 16 pages).

Workshop organizers

Dr. Pablo Oliveira Antonino, Fraunhofer IESE, Kaiserslautern, Germany

Prof. Dr. Flavio Oquendo, IRISA – Univ. Bretagne Sud, Vannes, France

Prof. Dr. Bedir Tekinerdogan, Wageningen University & Research, Wageningen, The Netherlands

Program Committee

Enis Kararslan, Muğla Sıtkı Koçman University, Muğla, Türkiye

Ruth Breu, University of Innsbruck, Austria

Mark van-den-Brand, Eindhoven University of Technology, Eindhoven, Netherlands

Tony Clark, Aston University, Birmingham, England

Gregor Engels, Paderborn University, Paderborn, Germany

Romina Eramo, University of Teramo, Teramo, Italy

Frank Schnicke, Fraunhofer IESE, Kaiserslautern, Germany

Norha Villegas, ICESI University, Pance, Colombia

Manuel Wimmer, Johannes Kepler University Linz, Linz, Austria

Andreas Wortmann, University of Stuttgart, Stuttgart, Germany

Marco Jahn, Eclipse Foundation, Darmstadt, Germany

Vinay Kulkarni, Tata Consultancy Services, Pune, India

Rafael Capilla, King Juan Carlos University, Madrid, Spain

Elisa Nakagawa, University of São Paulo, São Paulo, Brazil

Thomas Kuhn, Fraunhofer IESE, Kaiserslautern, Germany

Andreas Morgenstern, Mercedes-Benz AG, Stuttgart, Germany

Adam Bachorek, Fraunhofer IESE, Kaiserslautern, Germany

Loek Cleophas, Eindhoven University of Technology, Eindhoven, Netherlands