Document Type : Research Paper
Author
Mathematics Department, College of Science, Diyala University, Diyala, Iraq
Abstract
The problem of minimizing a function of three criteria maximum earliness, the sum of completion times and maximum lateness in a hierarchical method is presented in this paper. A set of n independent jobs has to be scheduled on a single machine that is continuously available from time zero onwards and that can handle no more than one job at a time. Job $ j (j=1,2, \ldots,n) $ requires processing during a given positive uninterrupted time $ p_j $. An algorithm to find the best possible solution is proposed for the problem of three criteria maximum earliness, the sum of completion times and maximum lateness in a hierarchical case.
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