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Heuristic Scheduling in a Nigeria Furniture Shop
Abstract
This paper presents a case study carried out in a furniture shop located in Benin, Bendel State of Nigeria.
Its products range from writing tables and desks to dining and sitting room sets. These are produced against orders. Currently, orders are dispatched using the First-come First-served sequencing rule; otherwise, known as the First in First-out rule (FIFO).
The objective or this study is to evaluate the performances of three well known heuristic sequencing pule; shortest processing time rule (SPT), longest processing time rule (LPT), and monetary value of completed order rule (MO); and possibly ascertain whether any of these rules offers a better schedule than the FIFO schedule currently used by the shop. This comparison is carried out on the basis of the combined objective of minimizing the expected mean now time of orders and the expected weekly idling time of work centres. The results obtained indicate that at least two schedules, LPT and MO, performed better than FIFO. The results are, however, system specific and therefore do not apply for all job shops.
