Robert Arp is a researcher and analyst for the U.S. Army at Fort Leavenworth, Kansas, who has worked on ontologies for the U.S. Air Force and the National Institutes of Health. He is the author of Scenario Visualization: An Evolutionary Account of Creative Problem Solving.

Barry Smith is SUNY Distinguished Professor of Philosophy at the University at Buffalo and Director of the National Center for Ontological Research.

Andrew Spear is Associate Professor of Philosophy at Grand Valley State University in Allendale, Michigan.