Abstract
Flexibility, speed, and efficiency are major
challenges for operations managers in today's
knowledge-intensive organisations. Such requirements
are converted into three production scheduling
criteria: (a) minimise the impact of setup times in
flexible production lines when moving from one product
to another, (b) minimize number of tardy jobs, and (c)
minimize overall production time, or makespan, for a
given set of products or services. There is a wide
range of solution methodologies for such NP-hard
scheduling problems. While mathematical programming
models provide optimal solutions, they become too
complex to model for large scheduling problems.
Simultaneously, heuristic approaches are simpler and
very often independent of the problem size, but provide
"good" rather than optimal solutions. This paper
proposes and compares two alternative solutions: 0-1
mixed integer linear programming and genetic
programming. It also provides guidelines that can be
used by practitioners in the process of selecting the
appropriate scheduling methodology.
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