本研究是使用游標卡尺來測量金屬手機背殼 ，並且使用不同的量測方式，將量測到的數據，利用品質管理上評估製程能力非常重要的三個指標，即Ck值(Capability of Accuracy)、Cp值(Capability of Precision)和Cpk值(Capability of Process)，Ck代表製程的準確度，Cp代表製程的精密度， Cpk則是綜合製程能力指數，透過以上這些指標，找出這項製程的標準差，去分析這項製程的實用性，以及作為後續開發的參考
;This study uses a vernier caliper to measure the metal mobile phone back shell, and uses different measurement methods to measure the data, using quality management to assess the process capability is very important three indicators, namely the value of Ck (Capability of Accuracy), Cp value (Capability of Precision) and Cpk value (Capability of Process), Ck represents the accuracy of the process, Cp represents the precision of the process, and Cpk is the comprehensive process capability index. Through the above indicators to find out the standard deviation of the process, to analyze the practicality of this process, and as a reference for subsequent development.
