GMS 401 Study Guide - Midterm Guide: Statistical Process Control, Process Capability, Six Sigma

• School: Ryerson University
• Department: Global Management Studies
• Course: GMS 401
• Professor: Fatemeh Firouzi

Document Summary

Staisical process control focuses on detecing departures from stability in a process: control charts are commonly used for this. There are two types of variaions: random and assignable. Sample mean control charts are used to monitor the process mean. Sample range control charts are used to monitor process dispersion or spread. Individual unit x control charts are used to monitor single observaions (n=1). Moving range control charts are used to monitor the dispersion or spread between the diference between consecuive observaions. P-charts are used to monitor the proporion of defecive items generate by a process. c-charts are used to monitor the number of defects per unit product. Process capability analysis is used to determine if the output of a process will saisfy design speciicaion. Six sigma quality is the approach that improves process capability to very high levels (3. 4 defects per million). Design of experiments is a major tool in six sigma quality.