Decision Optimization frequently deals with scheduling and resource allocation problems. One of the best-known software package for modeling and solving scheduling problems was ILOG Scheduler. This month IBM published a very detailed article “20+ years of scheduling with constraints at IBM/ILOG” that describes the latest IBM ILOG CP Optimizer for scheduling. You also may want to learn how to use DMN-like decision tables for “Modeling Decisions for Scheduling and Resource Allocation Problems“.