Introduction

Roundtable XXI took place on May 25-27, 2011, hosted by NASA Ames at Moffett Field, Mountain View, California. The event was attended by 26 people from 16 organizations. The CalConnect Interoperability Test Event was held immediately prior to the Roundtable on May 23- 25. Ten people from three organizations were present onsite. plus two more remotely A Workshohp on Tasks was held Wednesday afternoon as part of the Roundtable; in addition to the Roundtable participants, several others were present just for the workshop or attended remotely.

The Roundtable was dedicated to technical committee sessions, and informal discussions and networking, with an all-hands Plenary meeting as the last item on Friday afternoon. The Technical Committee sessions were as usual organized sequentially, without competing parallel sessions, as is our standard practice to allow all attendees who wished to be involved in the discussions of each Technical Committee the opportunity to do so.