Encyclopedia of Operations Research and Management Science

2013 Edition
| Editors: Saul I. Gass, Michael C. Fu

Preemption

Reference work entry
DOI: https://doi.org/10.1007/978-1-4419-1153-7_200625

Concept having to do with how priorities are treated. In queueing theory, this means that an arriving higher priority customer pushes a lower one out of service because the newcomer has higher priority; service of the preempted customer later can either continue from the point of its interruption (preemptive resume queue discipline) or start totally anew. In goal programming problem, it is a statement that stipulates the ordering of the goals, so that a solution that satisfies the priority k goal is always to be preferred to solutions that satisfy the lower priority goals k + 1,....

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© Springer Science+Business Media New York 2013