David Ing became a member of the International Society for the Systems Sciences in 1998, contributing digests of the ISSS Atlanta meeting [REF].
Ing has been invited to a series of the biannnual conversations of the International Federation for Systems Research, contributing to the proceedings of the IFSR Conversation 2010 Pernegg,[REF] Fusch Conversation 2008,[REF] Fuschl Conversation 2006[REF] and Fuschl Conversation 2004 [REF].