A New Technique to Measure Process Capability with Taguchi Loss Functions

Purpose of this study is to define a novel process capability analysis regarding to loss function. Loss functions such as Taguchi loss functions, assess the process losses, but this function do not distinguish real harmful loss. So in this study an improved Taguchi loss function method is constructed. Then regarding to this new function a novel process capability is developed. The logical idea is to use improved Taguchi quality loss function in order to measure the process capability. Main findings are improved Taguchi loss function that is more sensitive to losses and new process capability index base on improved Taguchi loss function, for qualitative response data, to evaluate the process capability for the qualitative response data.