John serves as the Chief Scientist for the Center for Understanding Change. Dr. Cummings, an expert in
modeling systems and systems-of-systems, is responsible for aligning clients’ needs to scientific models to perform
Dr. Cummings worked at Sandia National Laboratories in Albuquerque, NM for 32 years, serving in a wide variety of
technical staff and management positions. He was the Deputy to the Chief Technology Officer and Manager of the
Science and Technology Strategic Management Unit Office. On assignment from Sandia, John was the Director of R&D
programs for critical infrastructure protection in the Science and Technology Directorate of the Department of
Homeland Security. He was also the Director of a project on process control systems security research for the Institute
for Information Infrastructure Protection (I3P).
Dr. Cummings received his BS, MS, and PhD (1973) degrees from Caltech. His PhD research involved the development of
a cryogenic shock tube and the study of strong shock waves in gaseous and liquid helium. He is the author or coauthor
of over 50 technical publications and reports.