Software development is the core activity of the ODA and since 1998 the Open Design Alliance has worked to provide its members with a best-in-class development platform for engineering solutions. Read more on the history of the ODA. Currently the ODA has 1200 members who are benefiting from the up to date technology provided by the ODA and integrating Teigha in their solutions. These members are licensed to distribute their solution according to their level of membership.