System developed by David Raskin and John Kircher of the University of Utah that permitted modified field analog polygraphs to interface with a computer. Signals were extracted from the pen drive motors and routed to an analog-to-digital converter, where they were digitized, stored, edited, and analyzed. Discriminant analysis was used to weigh and combine measurements, and the software produced a statement of the probability of deception. CAPS, which stood for Computer Assisted Polygraph System, was later replaced by CPS, Computerized Polygraph System, which used a computer without the analog polygraph.
