ABSTRACT The problem of personnel or employee scheduling has become increasingly important for both public sectors and private companies. It is an extension to the standard shift scheduling problem with some key limitations. But today, the increased generality of this problem has lead to more complex model due to its size and pure integer nature. So it has proven very difficult to solve optimally. Numerous approaches for modeling and solving this problem have been proposed. Here, we reviewed and classified the literature on personnel scheduling problem. The objective is to identify broad classification, compare different methods and identify the future research directions.

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