It detects the presence of special causes of variation.
Can improve our process,
It allow industry to qualify process and potential success or failure
it is the use of charts called "control charts" to monitor a process. it is a very objective method of monitoring. it involve the collection data from the process. hence it makes identification of the cause of problem in the process easier.
It has 5 limitations: DNS may just be eccentricityCriminal Activity Cultural Relativism Social norms change over time Political control
Cp is the capability of a process and Cpk is the actual capability of a part running in the process. The only way Cp = Cpk is if the process mean is exactly centered which is seldom the case in manufacturing. Therefore, Cp > or = to Cpk.
Can improve our process,
to check the process variation.
Explain the difference between capability and control.
statistical process control
SQC or statistical quality control is concerned with using the 7-QC and 7-SUPP tools to monitor process outputs. Statistical process control, or SPC is concerned with monitoring the inputs of the process.
in statistical process control you can make bars and charts as an activity, control charts, process capability, ishikawa diagrams and pareto charts. you can also find controlled variables and chart them to see they're progress based on your experiment.
C. S. M. Harris has written: 'Review of principles, techniques and benefits of statistical process control' -- subject(s): Statistical methods, Process control
Derek Bissell has written: 'Statistical methods for SPC and TQM' -- subject(s): Process control, Quality control, Statistical methods
Qualification to work in Statistical Process Control would include ample mathematics skills, computer skills, and data analysis skills. Also a very good eye for detail.
SEE; poke-yoke (error proofing) process capability statistical process control
Fred W. Kear has written: 'Printed circuit assembly manufacturing' -- subject(s): Printed circuits, Design and construction 'Statistical process control in manufacturing practice' -- subject(s): Statistical methods, Quality control, Process control
It allow industry to qualify process and potential success or failure