Our Mission

The Modelica Association is a non-profit, non-governmental organization with the aim of developing and promoting open and coordinated standards for system modelling and simulation.

In concrete terms, our current work can be summarized by two main branches:

A more detailed account of our work is provided by the list of Modelica Association Projects below.

Furthermore, the Modelica Association owns and administrates incorporeal rights related to Modelica, including but not limited to trademarks, the Modelica Language Specification, Modelica Standard Libraries, etc., which should be generally available for the promotion of industrial development and research.

Join the Modelica Association

If you share our goals and would like to contribute, you can become a member of the Modelica Association in two ways. You can become

Membership gives you voting rights and enables you to participate in the discussions and technical work of the Association. It is encouraged to join at least one of the MA projects as a guest before becoming a member.

If you are interested, simply contact the Modelica board and explain your motivation. The application form for individual members provides useful guidance.

Modelica Association Projects

A project to develop, standardize, and promote Modelica, a language to model and simulate multi-domain cyber physical systems in a convenient way.

Modelica Language

A project to develop, maintain, and promote the open source Modelica libraries and model components in many domains based on standardized interface definitions.

Modelica Libraries

A free standard that defines a container and interface to exchange dynamic simulation models using a combination of XML files, binaries, and C code.

fmi-standard.org

A tool independent standard to define complete systems of one or more FMUs including its parameterization that can be transferred between simulation tools.

ssp-standard.org

A platform and communication medium independent standard to integrate models and real-time systems into simulation environments.

dcp-standard.org

A standard to seamlessly integrate physics design models of systems with their electronic controls development.

efmi-standard.org

Modelica Association Bylaws

Individuals interested in joining the Modelica Association must have contributed to an MA project or to other parts of the Modelica Association. A contribution is typically demonstrated by participation in at least two projects or Assembly meetings during the previous twelve-month period (§3 of the bylaws). There is no such prerequisite for organizational membership applications. Individuals and organizations may apply to become a member with this form (PDF format) which should be completed, signed, scanned and mailed to the chairman. Currently, the fee for individuals is 20 Euro/year and for organizations since 2007 according to the number of employees: ≤ 5: 500 Euro/year, ≤ 50: 1000 Euro/year, ≤ 500: 2000 Euro/year, > 500: 5000 Euro/year. In 2025 the organizational membership fees will be raised by 50%.

Information on upcoming design meetings and more are published on the Modelica Association calendar. People interested to participate should contact the organizer for details.

Licenses

The following licenses are used by the Modelica Association for material provided to the public.

Modelica Association Meetings

Board of the Modelica Association
Chairperson Dirk Zimmer DLR-SR, Germany dirk.zimmer@dlr.de
Vice-Chairperson Martin Sjölund Linköping University, Sweden martin.sjolund@liu.se
Secretary Michael Tiller JuliaHub, USA michael.tiller@gmail.com
Treasurer Jonas Eborn Modelon, Sweden jonas.eborn@modelon.com

Board Members with specific duties
Marketing Hubertus Tummescheit hubertus.tummescheit@gmail.com
Quality and Processes Francesco Casella Politecnico di Milano, Italy francesco.casella@polimi.it
Technology Martin Otter DLR-SR, Germany martin.otter@dlr.de
Project leader “Modelica Language” Hans Olsson Dassault Systèmes, Sweden hans.olsson@3ds.com
Project leader “Modelica Libraries” Francesco Casella Politecnico di Milano, Italy francesco.casella@polimi.it
Deputy Project leader “Modelica Libraries” Anton Haumer OTH Regensburg, Germany anton.haumer@oth-regensburg.de
Project leader “FMI” Christian Bertsch Bosch, Germany contact@fmi-standard.org
Deputy Project leader “FMI” Torsten Sommer Dassault Systèmes, Germany contact@fmi-standard.org
Project leader “SSP” Jochen Köhler ZF Friedrichshafen, Germany jochen.koehler@zf.com
Deputy Project leader “SSP” Pierre Mai PMSF, Germany pmai@pmsfit.de
Project leader “DCP” vacant
Deputy Project leader “DCP” Klaus Schuch AVL, Austria klaus.schuch@avl.com
Project leader “eFMI” Christoff Bürger Dassault Systèmes, Sweden christoff.buerger@3ds.com
Deputy Project leader “eFMI” Hubertus Tummescheit hubertus.tummescheit@gmail.com

Members of the Modelica Association with Specific Duties
Newsletter Editor Filip Ježek Prague, Czech Republic
Auditor 1 Karl Wernersson Dassault Systemes, Lund, Sweden
Auditor 2 Ben Landgren Performansea
Deputy Auditor Bernhard Bachmann University of Applied Science, Bielefeld, Germany

Modelica Association Backoffice

Modelica Association Backoffice is run by LTX Simulation GmbH in Munich, Germany. If you want to become a member or have other adminstrative questions, please contact us at: backoffice@modelica.org

Contributor License Agreements and other documents can be sent to:

MA Backoffice
c/o LTX Simulation GmbH
Wohlfartstr. 21b
80939 Munich
Germany

Organizational Members of the Modelica Association (listed alphabetically)

Individual Members of the Modelica Association (listed alphabetically)

Map of Modelica Association members

Have a look at the map of Modelica Association members (created using the map rendering service of GitHub).

History of the Modelica Association

There have been several attempts to define object-oriented languages for physical modeling. However, the ability to reuse and exchange models relies on a standardized format. It was thus important to bring this expertise together to unify concepts and notations. The Modelica design effort was initiated by Hilding Elmqvist, Dynasim AB, and started in September 1996 within an action of the ESPRIT project “Simulation in Europe Basic Research Working Group (SiE-WG)”. The Modelica language has been designed by the developers of the object-oriented modeling languages Allan, Dymola, NMF, ObjectMath, Omola, SIDOPS+, Smile and a number of modeling practitioners in different domains. After 8 three-day meetings, during a 1-year period, a first version of a Modelica language description was put on the web in September 1997. After 19 three-day meetings, during a 3-year period, version 1.3 of the language specification was finished in December 1999. This was the first version used in actual applications. In December 2000 an update of the language, version 1.4, has been published.

Pictures