I presented this several years ago to the International Telecommunications Union. I was invited to attend a meeting of Study Group 17 that was looking at different forms of identity, network, enterprise and user-centric. I was able to persuade the group to use Open Space for 2 days of a 4 day meeting and deeper genuine understanding between the different points of view emerged. I was invited to present about Open Space at the 2nd ITU-T Study Group 17 meeting to others at that institution who might find it useful. This presentation goes with this PDF Introduction to Open Space that goes into more details.
I think it is a good overview of the process covering how and why it works, in particular for technical communities.