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OpenAmeos is the multi-platform/multi-user UML® Modeling Environment with unique support for UML 2.0 Profiles, MDA® based Model Transformation and support for color to visualize semantics.

OpenAmeos supports all UML1.x diagram types and is presently in the process of moving towards UML2. MDA based code generation templates are available for Java, C++, C, Ada95, C#. Additional templates and profiles support platforms such as RavenScar or the Java High-Integrity-Platform (HIP).

OpenAmeos is the open source version of the Ameos UML modeling tool. In early 2007, Aonix decided to release the Ameos source code to the public. Under the terms of the Ameos open source agreement , a "clean" open source version of Ameos, called OpenAmeos, has been created to ensure that anyone installing a new version of OpenAmeos will be able to use it freely without encumbrances of any other source contributions.

Any company or academic institution who wants to distribute OpenAmeos, is required to also make their changes to the source code freely available to others in order to ensure the continuing open evolution of OpenAmeos.

OpenAmeos Downloads

OpenAmeos is available as source code, public binary builds and maintenance subscription builds.

Public Binaries
OpenAmeos 11.0 for Windows
OpenAmeos 10.2 for Linux
PDF Documentation
Ameos Open Source License
Source Code
Source Code ZIP files
Subversion Repository on

New features and Release Notes

11.0New FeaturesRelease Notes
10.2New FeaturesRelease Notes
10.1New FeaturesRelease Notes
10.0New FeaturesRelease Notes


OpenAmeos is maintained by ScopeSET, which was established in 2006 by former Aonix employees, who were key architects of the Ameos product. ScopeSET maintains the technical infrastructure to provide binary distributions and general product support (via this web site).

Existing Ameos customers as well as the general community are however encouraged to provide customizations or extensions to the product. ScopeSET acts as an integrator in this case in order to maintain the stability and integrity of the code base.

Installation support

Installation support is provided free of charge by ScopeSET, please register or login and submit a new tracker issue.

For privacy, any submitted issues and attachments are only visible to your account and the ScopeSET support team.
Further technical information is available in the technical FAQs or by searching this website.

Expert support

Any support beyond installation is provided by ScopeSET based on annual maintenance subscriptions. These subscriptions include:

  • Immediate support for critical issues
  • Telephone/Hotline support 9:00-17:00 MET
  • Customization and tailoring support
  • Prompt access to patches, maintenance releases and new feature releases
For more information, please contact ScopeSET.


General information:

Community Development