PRODUCTION SCHEDULING TO SATISFY WORKERS PREFERENCES FOR DAYS OFF ANDOVERTIME UNDER DUE-DATE CONSTRAINTS

A worker's satisfaction level on a production schedule is an important factor to sustain the worker's morale. An ideal production schedule f or the worker accords with the worker's preferences for days off, over time, and so on. However, production schedules may not always satisfy the worker's preferences, because the schedules must often satisfy job due dates. This paper describes a production scheduling problem which seeks to satisfy the worker's preferences under due-date constraints. A scheduling problem is considered with the objective of satisfying t he worker's wishes on days off without overtime. The solution may not always satisfy all of the workers' preferences when the work loads are too heavy. Then a scheduling problem is analyzed which minimizes the total overtime necessary to satisfy all the workers' preferences. Thes e scheduling problems are formulated as linear goal programming proble ms, and a numerical example is given.