The 44th International Conference on Conceptual Modeling (ER 2025) is the premier international conference for research and practice on Conceptual Modelling. The conference provides a vibrant forum for discussing and extending the state-of-the-art conceptual modeling foundations, emerging and future challenges, and the pivotal role conceptual modeling plays in a variety of applications. In celebrating its 44th anniversary this year, we especially invite contributions on the theme of: BUILDING TRUST THROUGH CONCEPTUAL MODELING.

Building trust in digital ecosystems has gained a heightened importance in an increasingly contested world. This year’s theme focuses on the important role conceptual modeling plays in creating systems that are trustworthy, inclusive, and transparent. We invite the Conceptual Modelling community to deliberate on how traditional modeling principles and frameworks can contribute and adapt to new advancements in AI, data ecosystems, and autonomous platforms while upholding ethical standards and fostering trust in digital innovations.

This website is dedicated to the registration process of the ER 2025 conference. Please visit the full website for complete details: https://er2025.ensma.fr

• All prices are listed in EURO and include French V.A.T (20%). To view the current foreign exchange rates, please visit European Central Bank.
• Regular, Student Doctoral Consortium and Author (Author, Co-Author and Additional Paper Author) registrations include access to all events from October 20-23: participation to all sessions of all tracks and all events (workshops, tutorials, SCME, posters/demos and indusrial track). Also included lunches, coffee breaks, ticket to the Welcome reception (October 20), ticket to the social event (October 21), ticket to the social dinner (October 22) and conference material.
• PhD students whose applications to the Doctoral Consortium have been accepted are eligible for a discounted conference registration rate.
• All accepted authors who are presenting at ER 2025 are required to register at the Author Registration rate. If you are a primary author on an additional paper, you are also required to register using the Additional Paper Author registration. This additional rate will cover the costs of publication and overhead. If you are a co-author on a paper (but not a primary author on another paper), you may register using the Co-Author Registration fee.
• Workshops, Tutorials and SCME registration includes access to all events on October 20 (first day), including participation in all workshops. It also covers lunch, coffee breaks, a ticket to the Welcome Reception (October 20), and conference materials.
• To be eligible for the student discount: two conditions. You must not have a paper (else Author, Co-Author or Additionnal Paper Author) you must have been a student on an accredited institute the day of the submission deadline. Documentation proving registered student status (student’s ID Card or a letter from the Head of Department/Director of Doctoral School prepared on the notepaper of the institution) should be sent to: er2025@ensma.fr.
• Cancellations received after October 10 will not be refunded, except under special circumstances. Please contact the organizing committee for further assistance.
• If you are registered for the conference and would like to invite guests to attend the Welcome Reception (October 20) and/or the Social Event (October 21) and/or the Conference Dinner Cruise (October 22), a separate registration with Guest status must be completed, and the name of the inviting participant must be provided. No alcoholic beverages will be served to anyone who appears to be under the age of 18. The ER 2025 Conference and its vendors reserve the right to require proof of age before serving alcoholic beverages.