Open Design Alliance
The Open Design Alliance is an association of software developers and users committed to promoting open, industry-standard formats for the exchange of CAD data. The Open Design Alliance focuses on the practical matter of developing high-quality component software libraries which enable our members to develop applications capable of reading and writing popular CAD file formats, including: DWGdirect, based on OpenDWG®, the industry standard format supported by hundreds of commercial software vendors, and used by millions of engineers, designers and architects.