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A
NALYZE
Samples 11 to 30: Analysis of the updated
control charts
S
TEP
8: A
NALYSE THE UPDATED CONTROL CHARTS
(
INCLUDING
SAMPLES FROM
11
TO
30)
•
Are all the points within the limits on both charts? Which
proportion is within or outside?
•
Do you detect special causes? (out of the limits or trends)
If yes
:
•
Has something changed in the process?
•
Can you remove those special causes and make the
process back to a stable situation?
•
Check your capability indicators.
If no
:
•
Analyze the capability indicators.
•
Good time for improvement.
Measurable
and
continuous
improvement of
quality
03/10/17
28