Statistical process control - Process capability index

SPC is a set of  techniques to differentiate between stable,drifting and variable processes by using statistical methods. PCI is a number expressing the capability of the process.

Objectives

• Understanding measurable in the process
• Building capability of monitoring the process
• Applying SPC in the process.
• Evaluating ability of the process
• Express the ability mathematically
• Controlling the process

 

Content

• Classification of characteristics
• Measuring, registering and sorting the data
• Calculating average  and standard deviations (Process capability index)
• Preparing the graphic outcome
• Reviewing the outcome towards customer specs
• Eliminating sources of variation