提升作業效率，降低單位生產成本，是企業競爭的基本要件之一。有效地提高作業的執行效率可降低生產成本，而作業本身的複雜度，操作員本身如人格特質與體型、作業方法、作業環境等等，皆會影響工作執行的效率。實務上，建立作業標準時間冗長，且生產線工作站之人員指派無參考依據，影響作業之生產效率與成本之控制。為了瞭解作業動作等級與操作員體型是否影響操作員的學習效果，本研究針對不同體型的操作員執行不同作業動作等級的作業，進行實驗數據的收集，透過二因子變異數分析探討操作員的學習效果。根據實驗結果，作業動作等級與體型會影響操作員對作業的學習效果。據此結論，將可提供工廠在人員聘任及生產線作業指派時之參考，進而快速建立其作業標準時間及提昇生產力，降低生產成本。

Improving the efficiency and reducing the production unit cost is one of the primary competitive factors. The cost will be reduced by efficiently performing the operations. There are many factors that affect the efficiency of production, such as operation complexity, operator's personality, operation methods, and operating environment, especially operators themselves. For performing a certain task, the learning effect of an operator being affected by motion classifications and operator builds are conducted in order to quickly establish the standard time of a task. Therefore, an experiment and analyses of variance for the two factors, the classifications of motions and operator builds, upon the learning effect of an operator are conducted. According to the results, motion classifications and operator builds can affect the learning effect of an operator. Based on the consequences, the tasks can be assigned appropriately to an operator on an assembly line so as to promptly establish the standard time, enhance the productivity, and lower the manufacturing cost.