Exact and Suboptimal Reactive Strategies for Resource-Constrained Project Scheduling with Uncertain Resource Availabilities

In order to cope with the uncertainty inherent in practical project management various strategies can be used. Proactive strategies try to accommodate disruptions in advance, whereas reactive strategies react after a disruption happened and try to revert to a feasible schedule. We give an extensive overview of reactive strategies, exact as well as heuristic, that can be used during project execution when the project is subject to disruptions due to unforeseen resource breakdowns. Furthermore, we present a heuristic that also takes future uncertainty into account when repairing the schedule.