1 Introduction Where changes to a solution introduce additional expenses or reorganization,solution robustness is a valuable property. A robust solution is less sensitive to changes. For example, a robust schedule will not collapse immediately when onejob takes slightly longer to execute than planned. The schedule should change locally and in small proportions, and the overall makespan should change littleif at all. To improve solution robustness, we introduce the concept of super-solutionsto constraint programming (CP). An
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