Models used for safely staging divers by computers, software, or tables need
correlation and validation against real diving data. The process of correlating diver
profiles and DCS outcomes against predictive models and fundamental parameters is
presented. Data from computer downloaded profile records is correlated against several
well known models, that is, USN, ZHL16, VPM, and RGBM using maximum
likelihood statistical techniques. Results are tabulated, LANL DB discussed, risk
functions constructed, and implications for diving and divers detailed.
Keywords: Maximum likelihood, Model correlations, Profile data banks, Risk.