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Deming’s Four Rules
1.
Funnel is fixed, aimed at the
target, with no adjustment.
2.
Move -y from the last
position to aim for the next
drop.
3.
Move -y from the target to
aim for the next drop.
4.
Follow; move y from the
target to aim for the next
drop.
Target
µ
ε
0
y
(
)
new
= −
y
µ
(
)
new
=
y
µ
In-control
Process
Feedback
Rule
μ
t-1
Y
t