Initial Process Studies used for to measure the consistency of the process or product performance based on specified design by reaching consistency of the product quality and performance. Initial Process Studies helps to manufacturers to reduce wastages, reworks, over processing. Involvement of control chart disclose the status of process performance and product quality to manufactures by real time consideration of SPC (Statistical Process Control). Whether manufacture choosing real time Initial Process Studies can avoid and control the special cause variation on process and product. Moreover can focus on process improvements and defect free products.
PPAP Process Model with feedback:
Initial Process Studies:
Initial Process Studies is the application of statistical techniques to determine whether the output of the process confirms to the products of service designs.
A process is in control if:
Initial process Studies:
Calculate the appropriate statistical metrics in order to determine how the “Voice of the Process” compares to the “Voice of the Customer.”
Difference between Cp & Cpk:
Cpk predicts capability
Cpk should be used when:
Ppk indicates past performance:
Ppk should be used when: