Support of JCATS Limited V&V

The goal of this study effort was to assess the ability of the Joint Conflict and Tactical Simulation JCATS to simulate the capabilities of non-lethal weapons NLW and to provide a product that can be incorporated into the full VVA of JCATS. This work investigated the first 32 algorithms on the JNLWD VV Priority List. It evaluated JCATS algorithms in two ways 1 verification of computer code against algorithm documentation, and 2 appropriateness of algorithms within context of U.S. Army current model standards. All 32 algorithms were verified, with very few discrepancies with the documentation being found. Of these 32 algorithms, only 25 were documented already by LLNL in the JOATS Algorithm Manual so documentation for the remaining 7 was developed with the help of LLNL from documentation internal to the JCATS computer code. Evaluation of these algorithms actually a subset of five or so key algorithms within the context of a compendium of algorithms developed for the Close Combat Tactical Trainer CCTT developed by AMSAA revealed that several key algorithms particularly target acquisition should be upgraded, if possible. This research also revealed a document that could be used to provide the theoretical basis of most of the AMSAA algorithms, particularly those for attrition. Such a document was never available to LLNL. Although some key algorithms should be upgraded mainly because of modeling and simulation developments of the last five years or so, all JCATS algorithms including its target-acquisition algorithm were at one time more than adequate for analysis purposes. Moreover, overall the algorithms reviewed are deemed to be adequate particularly in comparison with Janus Army for playing close combat with non-lethal weapons in urban terrain for purposes of analysis. Further work particularly along the lines of the issues raised by this work is necessary, however, to document these modeling issues.