Hybrid and Co-located with MODELS 2025.

The onto:Nexus Workshop—formally known as the International Workshop on Ontological Modeling and Analysis—serves as a premier platform for the R&D community to present peer-reviewed, original research. The workshop champions innovative approaches in the field by showcasing work that applies formal methods for enhanced rigor, integrates DevOps practices to boost agility, and leverages AI techniques to automate activities in ontological modeling and analysis.

This edition of the workshop aims to bring together a rich set of researchers, practitioners, and tool-builders focused on ontological modelling and analysis, as applied to model-based software and systems engineering.

The secondary objective is to highlight novel and ongoing work in ontological modelling and analysis. With the resurgence of ontological techniques across domains and disciplines, there is a need for a workshop-level venue for promoting early-stage research, fundamental contributions, and applications to case studies.

• Thursday July 4, 2025: Abstract submission
• Thursday July 9, 2025: Paper submission
• Thursday July 31, 2025: Notification of acceptance
• Thursday August 7, 2025: Camera-ready submission

• Ontological modeling methods / methodologies, analysis tools, and processes for model-based software or systems engineering
• Ontological modeling best practices and guidelines, case studies, and benchmarks
• Creation of ontologies through collaboration, machine learning techniques, or other approaches
• Tooling for ontological modeling and analysis
• Empirical studies on the use of ontologies in MBSE
• Intersections between ontologies and formal methods
• Organizational and governance aspects of ontological modeling
• Semantic interoperability in software and/or systems
• AI for ontological modeling/analysis, and ontological modeling/analysis for AI
• Human-in-the-Loop: integrating human behavior into ontological modeling

The following types of papers are invited for submission:

• Regular Papers: Up to 10 pages — Novel research contributions or innovative applications.
• Short and Tool Papers: Up to 5 pages — Vision papers, tool descriptions, demonstrations, or case studies.
• Industry Short Talks: Up to 2 pages — Open to all industry practitioners.

Submit your paper via the onto:Nexus Workshop 2025 EasyChair website.

All submissions must comply with the IEEE formatting instructions..

Submissions will undergo a single-blind review process, with each paper reviewed by at least three members of the program committee. Reviewers will assess the relevance, clarity, and potential to stimulate engaging discussion at the workshop. Accepted papers will be published by IEEE in the joint workshop proceedings.

Submissions must not be under review or submitted elsewhere concurrently. Violation of this policy — as explicitly outlined by both IEEE and ACM — will be considered a breach of scientific ethics, and appropriate actions will be taken.

• 
  Maged Elaasar, Modelware, USA
• 
  Bentley Oakes, Polytechnique Montréal, Canada
• 
  Wahab Hamou-Lhadj, Concordia University, Canada
• 
  Mohammad Hamdaqa, Polytechnique Montréal, Canada

• Yuta Nakajima, JAXA, Japan
• Eduard Kamburjan, IT University of Copenhagen, Denmark
• Sergio de Cesare, University of Westminster, UK
• Florian Noyrit, CEA LIST, France
• Giancarlo Guizzardi, University of Twente, The Netherlands
• William Van Woensel, University of Ottawa, Canada
• Kristóf Marussy, Budapest University of Technology and Economics, Hungary
• Avi Shaked, University of Oxford, UK
• Sophia Salas, The CT Engineering Group, France
• Joe Gregory, University of Arizona, USA
• Ahsan Qamar, Ford Motor Company, USA
• Sangeeth Saagar Ponnusamy, Airbus, Germany
• Michael Halvorson, University of Alabama in Huntsville, USA
• David Wagner, Jet Propulsion Lab, USA