The impact of selected priority rules on production goals

The paper presents the outcome of a study that dealt with scheduling of operations and in particular with the impact of selected priority rules on production goals. The impact of the priority rules was examined on a simulation model of the smart flexible manufacturing system with interchangeable workplaces. These problems are characterized as job shop scheduling problems. The study documents the influence of the five selected priority rules FIFO (First in First out), EDD (Earliest Due Date), STR (Slack Time Remaining), STR/OP (Slack Time Remaining per Operation) and SQNO (Shortest Queue at the Next Operation) on chosen production objectives. The effect of applied priority rule has been studied at a different production system loading. The evaluation of experimental results and their synthesis conduce to the formulation of knowledge for the real use of these priority rules in the scheduling of operations.