\begin{biography}[{\includegraphics[width=0.8in,keepaspectratio]
{butch/butchpic}}]{Butch Caffall}
is the director of the NASA Independent Verification and Validation (IV\&V) Facility. 
A native of Arizona, Dr. Caffall 
graduated from the University of Arizona with a Bachelors
of Science in Electrical Engineering. He earned a Master of Science
in Software Engineering from the Naval Postgraduate School in March
2003 and a Doctorate in Software Engineering from the Naval
Postgraduate School in March of 2005. \end{biography}
