http://www.opengeospatial.org/ogc/members

The Open Geospatial Consortium, Inc.® (OGC) is a non-profit, international, voluntary consensus standards organization that is leading the development of standards for geospatial and location based services.

Member

As a member, ONUMA, Inc. creates tools that work with OGC standards. The ONUMA Planning System™ works with OGC standards.

Member

As a Graphisoft Developer, ONUMA, Inc. developes solutions that work with Graphisoft. This development work includes the various Object Libraries based on GDL and Add Ons to Archicad such as the ONUMA BIMdata™ Add On.

See the section on how to use Graphisoft with OPS™.

Member

As an Autodesk developer, ONUMA, Inc. develops solutions that work with Autodesk solutions based on IFC. See the section on how to use Autodesk Revit with OPS™.

GDL Alliance is:

To promote the culture of Geometric Description Language (GDL) and enhance the end user experience by providing an environment to attain a more clear understanding of GDL capabilities and implementation.

An independent, international "grass roots" professional association consisting of GDL authors, software developers, and building product manufacturers to promote GDL Culture world-wide. The direction that GDL takes has a direct impact on the realization of true Building Simulation and the relationship between the CAD community and the industry of building product manufacturers. We have gathered together as a unified alliance to shape the future of GDL. Our effort goes much beyond GDL. We will have a direct impact on the direction of GDL and the worldwide AEC community.

Founding Member

ONUMA, Inc. was one of the founding members of The GDL Alliance.

DDS Viewer for IFC files.

http://www.dds-cad.co.uk/