This is a tool that uses an algorithm called KEYS for DDP models. Version 1.0 The first working version of KEYS Version 2.0 Modified the KEYS algorithm to be able to find cost and attainment much closer (and more often) to the limits set by user at command line Version 2.1 Separated the models' initialization from the actual model for speed purposes Version 2.2 Added the slope funcionality in command line Version 2.3 Added different scoring methods as well as the ability to enter a different best percent and a random seed from command line (all for experimental purposes) Version 2.3.1 (Relative KEYS) Removed scoring methods and best percent to create a basic KEYS Version 2.4 Added the control of total number of runs to the command line Version 2.5 (Absolute KEYS) Made a slight change in the algorithm of KEYS and removed some of the extra features added in Version 2.3 Version 2.5.1 Made a change in the algorithm of KEYS to terminate early after a futile number of eras did not improve the cost and attainment