Impact Analysis of Disruptions on Composite Resources

This paper examines the impact of disruptions on the ongoing consumption of composite resources assigned to jobs. Composite resources are defined with consumption flows that refer to primitive resources associated each a consumption property and a time-availability interval. Specialized into unlimited, limited, limited-but-extensible, non-shareable, and shareable, a primitive resource’s consumption property sets potential constrains on its time-availability interval complicating the management of this interval when disruptions occur. Specialized into functional, structural, and technological, a disruption is handled by adjusting the composite resource’s consumption flow based on Allen’s time relations that could exist between the respective time-availability intervals of the primitive resources forming this composite resource. It happens that this adjustment is not doable resulting in canceling the job consuming the composite resource. A set of experiments also reported in the paper demonstrate the impact of disruptions on composite resources.