現場管制系統是使用ERP, SCM, APS等管理系統的成敗關鍵，而排程問題則是現場管制系統的核心。本研究從兩個主題探討最複雜的零工式排程問題：一、瓶頸機器對派工法則的影響；二、加班模式對整體系統效率的影響我們相當完整的比較十六種派工法則在各種"有瓶頸機器"與"無瓶頸機器"等不同情況下的表現，並提出選取派工法則的規則。同時，我們也開發一個考慮多目標的加班模式來提升整體系統的效率。我們相信本研究的成果對拉近零工式排程研究在理論與實務之間的距離應該會有幫助。 Shop floor control is a key factor for successfully applying ERP, SCM, and APS systems. Plus, scheduling is the core of a shop floor control. This research studies two topics in the complicated job shop scheduling: the effect of bottlenecked machines on dispatching rules, and the effect of overtime models on the efficiency of the whole system. We thoroughly evaluated sixteen dispatching rules on many different conditions "with bottlenecked machines" and "without bottlenecked machines", and summarized rules for the selection of dispatching rules under different conditions. Also, we developed a multi-objective overtime model for enhancing the performance of the whole system. It is believed that the results produced in this research will be helpful for bridging the gap between theoretical research and practical applications on job shop scheduling.