Production Scheduling for Reduce the Process Time: A Case Study Warehouse

Abstract

The objective of this research is to 1) assess the practical process in warehouse department 2)
reduce the waste time of working process and 3) compare new methods with the existing method based
on priority rules. The experimental results show the working time of first come first serve method was
118.58 minutes and utilization were 0.82%. The shortest processing time method provided an average
job working time decreased by 16.60% when comparing to the existing method and worker utilization
increased by 7.51%. The longest processing time technique showed average job working time slightly
decreased by 0.20% and worker utilization decreased to 1.62%. Critical ratio method increased the
average job working time by 5.26 %, while worker utilization decreased to 4.27%. Least slack job rule
reduced both the average job working time and worker utilization by 5.57% and 1.20%, respectively. The
conclusion indicated that the shortest processing time technique was the most effective method due to
better solutions.