Interpreting Control Charts

When Special causes of variation are affecting a process and making it unstable and unreliable, the process is said to be Out Of Control. Special causes of variation can be identified and eliminated thus improving the capability of the process and quality

The following are some of the more common Out Of Control patterns:

A. Most points are near the center line.

Upper Control Limit

Lower Control Limit

Average

Tool Wear?

Change To Machine Made

Tool Broke

Previous slide

Next slide

Back to first slide

View graphic version

	The. Deming PDCA Cycle	QMS Implementation	FMEA Information	APQP Information
Auditing Information	8-D Problem Solving	Statistics	Error Proofing (Poka Yoke)	Brainstorming
Identifying Waste	Pull Systems	Lead Time Reduction	Planned Maintenance	Quick Setup
Discovering Change	Process Capability - Cp vs. Cpk	Histogram. Animation	Process Loop Animation	Taguchi Loss Function
		Fishbone / Cause and Effects Animation

ADVERTISEMENT