2.75.3.2 Algorithm for Process Overview
Contents
Normal Process Overview
Standard Deviation Estimation
- Please refer to Standard Deviation Estimation for the details of calculations for pooled standard deviation, average of subgroup ranges, average of subgroup standard deviations, average of moving range, median of moving range, square root of mean squared successive differences, and overall standard deviation.
Within Capability
- Please refer to Potential Capability for the similar details of calculations for Cp, CPU, CPL, and Cpk.
- Please refer to Expected Within Performance for the details of calculations for PPM < LSL, PPM > USL, and PPM Total.
- Please refer to Benchmark Zs for Potential Capability for the similar details of calculations for Z.LSL, Z.USL, and Z.Bench.
Overall Capability
- Please refer to Overall Capability for the similar details of calculations for Pp, PPU, PPL, Ppk, and Cpm.
- Please refer to Expected Within Performance for the details of calculations for PPM < LSL, PPM > USL, and PPM Total.
- Please refer to Benchmark Zs for Potential Capability for the similar details of calculations for Z.LSL, Z.USL, and Z.Bench, by using
instead.
Between/Within Process Overview
Standard Deviation Estimation
- Please refer to Standard Deviation Estimation section for the details of calculations for within subgroup standard deviation, between subgroup standard deviation, between/within standard deviation, and overall standard deviation.
Between/Within Capability
- Please refer to Potential Capability section for the calculations of Cp, CPL, CPU, Cpk, and CCpk. The difference is that the
is replaced by 
. - Please refer to Expected Within Performance for the details of calculations for PPM < LSL, PPM > USL, and PPM Total.
- Please refer to Benchmark Zs for Potential Capability for the similar details of calculations for Z.LSL, Z.USL, and Z.Bench, by using instead.
- Please refer to Potential Capability section for the calculations of Cp, CPL, CPU, Cpk, and CCpk. The difference is that the
Overall Capability
- Please refer to Overall Capability for the similar details of calculations for Pp, PPU, PPL, Ppk, and Cpm.
- Please refer to Expected Within Performance for the details of calculations for PPM < LSL, PPM > USL, and PPM Total.
- Please refer to Benchmark Zs for Potential Capability for the similar details of calculations for Z.LSL, Z.USL, and Z.Bench, by using instead.
Non-normal Process Overview
Overall Capability
- Please refer to Non-normal Capability Analysis for more details about the calculations, including Pp, PPU, PPL, Ppk, PPM < LSL, PPM > USL, PPM Total, Z.LSL, Z.USL, and Z.Bench.
Probability Plot
- For more details, please refer to Probability Plot.