OMG is selected because it is developing a rich suite of standards aimed at distributed component software interoperability. A reason to focus on these two is that together they control much of the software infrastructure for future distributed application development and delivery via the web. Also they have good liaisons to other relevant standards development organizations. OMG meets six times a year, three meeting in the U.S. and three International. OMG has a small technical and administrative staff.
Most work is done by member organizations.
W3C has over 260 member organizations. Work is done by W3C technical staff as well as industry technology submitters. Specifications developed within the Consortium must be formally approved by the Membership. Consensus is reached after a specification has proceeded through the review stages of Working Draft, Proposed Recommendation, and Recommendation. In addition, and unlike OMG, W3C develops software prototypes that it releases to its members and later to the public.