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:

• Development and specification of the open Modelica language as well as the development and refinement of corresponding modeling Libraries, most essentially the Modelica Standard Library.
• The development and distribution of collaborative industrial standards for modeling and simulation such as FMI, eFMI, SSP, and DCP.

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

• an individual member or
• an organizational member, representing your company.

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 individual application form provides useful guidance.

Modelica Association Projects

Modelica Association Bylaws

• Modelica Association Bylaws
• Minutes of the establishing meeting

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. If you are interested, simply contact the Modelica board and explain your motivation. Currently, the fee for individuals is 20 Euro/year and for organizations according to the number of employees:

• ≤ 5: 750 Euro/year
• ≤ 50: 1500 Euro/year
• ≤ 500: 3000 Euro/year
• > 500: 7500 Euro/year.

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.

• 3-clause BSD License for the Modelica Association
• Modelica License Version 2 (Nov 19, 2008) [HTML] [Modelica] [PDF] [Open Document Format]
• Modelica License Version 1.1 (June 30, 2000) [HTML] [Modelica] [TXT]
• Modelica Association Contributor License Agreement 1.1.1

Modelica Association Meetings

Board of the Modelica Association

Board Members with specific duties

Members of the Modelica Association with Specific Duties

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

• Picture taken at DLR (Oberpfaffenhofen) in September 1997. At this meeting Modelica 1.0 was released and made available on the web.
• Picture taken at the Twente design meeting 1999.
• Picture 1 taken at the Modelica design meeting in Vienna, 2006.
• Picture 2 taken at the Modelica design meeting in Vienna, 2006.
• Picture taken at the Modelica design meeting in Lund, Sept. 2007, after Modelica 3.0 was released.
• Picture 1 taken at the Modelica design meeting in Lund, May 2009, after Modelica 3.1 was released.
• Picture 2 taken at the Modelica design meeting in Lund, May 2009, after Modelica 3.1 was released.
• Picture 1 taken at the Modelica design meeting in Hamburg-Harburg, March 24 2010, after Modelica 3.2 was released.
• Picture 2 taken at the Modelica design meeting in Hamburg-Harburg, March 24 2010, after Modelica 3.2 was released.
• Picture taken at the 75th Modelica design meeting in Lund, May 9, 2012, after Modelica 3.3 was released.
• Panoramic picture taken at the 75th Modelica design meeting in Lund, May 9, 2012, just before Modelica 3.3 was released.