Large Group Interventions (LGI) are methods for facilitating and managing Organizational Change that include the whole organization (or a representation of the organization), and often other stakeholders such as customers, suppliers, financiers, and governments. The number of participants can vary from 10 to 3000 or more participants.
10 doesn't seem very "large". And couldn't this be a generic term for Participatory Processes that involve large numbers of people?
See Category Large Group Intervention to get a list of the ones with pages on Ncdd Wiki.
Some references:
http://www.geocities.com/dian_marie_hosking/largegroupinterventions.html - where much of this information came from
http://www.alumni.caltech.edu/~rouda/background.html - article by Robert H. Rouda, discussing background and theory of large scale organizational change methods. Goes into Interactive Strategic Planning, Future Search, Conference Model and Open Space.
http://www.martinleith.com/large_group_interventions/chapter.html - a chapter by Martin Leith about 'Creating collaborative gatherings using large group interventions'. This chapter, that is part of the 'Gower Handbook of Training and Development' (edited by Anthony Landale, 1999), includes a brief description of some LGI methods (some of those mentioned above; also Real Time Strategic Change, Participative Design and Simu Real) and describes the common principles that underpin the methods. For more information by Martin Leith on LGI, see his homepage http://www.martinleith.com/large_group_interventions/welcome.html
http://www.mapnp.org/library/org_chng/lrg_scale/lrg_scale.htm - material assembled by Carter Mc Namara.
http://courses.nus.edu.sg/course/socsja/Organizations/Org00-2/bunkeralbanCr.html - critical discussion of Bunker and Alban's book about 'Large Group Interventions'.
On http://ktru-main.lancs.ac.uk/pub/ol3.nsf/769f60f1be6577ad85256499006b15a5/486db5de97b2477480256761004f319e?OpenDocument you can read the article 'Towards a critical perspective of large scale interventions'.
[Different Facilitation Methods - Approaches to Whole Systems Change] - adapted from The Change Handbook: Group Methods for Shaping the Future - converted for online viewing by Lisa Heft of [http://www.openingspace.net Opening Space][http://www.openingspace.net/facilitation facilitationMethods.shtml]
Category Large Group Intervention