My view is that workshops are great to bring out ideas about risk issues. However, they are hopeless at getting quantitative info. For that, I believe the 1 to 1 interview is better, and then compare estimates. Delphi method suck.

Also a workshop can be a place where people don’t really speak their mind, but will do (more often) if the 1 to 1 is anonymous.

Best wishes
David Vose, Senior partner, Vose Consulting Group.
david@voseconsulting.com

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