This is a software tool for decision analysis with programming capabilities. It provides an integrated, systematic tool for making better decisions. DPL's MicroSoft Windows point-and-click interface should be easy to learn and use. DPL combines influence diagrams with decision trees allowing the user to switch effortlessly between the two. This version provides programming control over decision models and has the same capabilities as the professional software, but without some of the run-optimization features. This edition provides programming capability for more advanced users. System Requirements: IBM-compatible, one megabyte RAM memory (minimum, more will add speed), CGA, EGA, or VGA adapter and monitor, MS DOS 3.1 or later, MicroSoft Windows 3.0 or later, Recommended: Math co-processor.