<s>
The	O
check	B-Application
sheet	I-Application
is	O
a	O
form	O
(	O
document	O
)	O
used	O
to	O
collect	O
data	O
in	O
real	O
time	O
at	O
the	O
location	O
where	O
the	O
data	O
is	O
generated	O
.	O
</s>
<s>
When	O
the	O
information	O
is	O
quantitative	O
,	O
the	O
check	B-Application
sheet	I-Application
is	O
sometimes	O
called	O
a	O
tally	O
sheet	O
.	O
</s>
<s>
The	O
check	B-Application
sheet	I-Application
is	O
one	O
of	O
the	O
so-called	O
Seven	O
Basic	O
Tools	O
of	O
Quality	O
Control	O
.	O
</s>
<s>
The	O
defining	O
characteristic	O
of	O
a	O
check	B-Application
sheet	I-Application
is	O
that	O
data	O
are	O
recorded	O
by	O
making	O
marks	O
(	O
"	O
checks	O
"	O
)	O
on	O
it	O
.	O
</s>
<s>
A	O
typical	O
check	B-Application
sheet	I-Application
is	O
divided	O
into	O
regions	O
,	O
and	O
marks	O
made	O
in	O
different	O
regions	O
have	O
different	O
significance	O
.	O
</s>
<s>
Check	B-Application
sheets	I-Application
typically	O
employ	O
a	O
heading	O
that	O
answers	O
the	O
Five	O
Ws	O
:	O
</s>
<s>
Kaoru	O
Ishikawa	O
identified	O
five	O
uses	O
for	O
check	B-Application
sheets	I-Application
in	O
quality	O
control	O
:	O
</s>
<s>
However	O
,	O
a	O
check	B-Application
sheet	I-Application
can	O
be	O
used	O
to	O
construct	O
the	O
frequency	O
distribution	O
as	O
the	O
process	O
is	O
being	O
observed	O
.	O
</s>
<s>
This	O
type	O
of	O
check	B-Application
sheet	I-Application
consists	O
of	O
the	O
following	O
:	O
</s>
<s>
Note	O
that	O
the	O
extremes	O
in	O
process	O
observations	O
must	O
be	O
accurately	O
predicted	O
in	O
advance	O
of	O
constructing	O
the	O
check	B-Application
sheet	I-Application
.	O
</s>
<s>
When	O
the	O
process	O
distribution	O
is	O
ready	O
to	O
be	O
assessed	O
,	O
the	O
assessor	O
fills	O
out	O
the	O
check	B-Application
sheet	I-Application
's	O
heading	O
and	O
actively	O
observes	O
the	O
process	O
.	O
</s>
<s>
This	O
type	O
of	O
check	B-Application
sheet	I-Application
consists	O
of	O
the	O
following	O
:	O
</s>
<s>
Note	O
that	O
the	O
defect	O
categories	O
and	O
how	O
process	O
outputs	O
are	O
to	O
be	O
placed	O
into	O
these	O
categories	O
must	O
be	O
agreed	O
to	O
and	O
spelled	O
out	O
in	O
advance	O
of	O
constructing	O
the	O
check	B-Application
sheet	I-Application
.	O
</s>
<s>
When	O
the	O
process	O
distribution	O
is	O
ready	O
to	O
be	O
assessed	O
,	O
the	O
assessor	O
fills	O
out	O
the	O
check	B-Application
sheet	I-Application
's	O
heading	O
and	O
actively	O
observes	O
the	O
process	O
.	O
</s>
<s>
When	O
process	O
outputs	O
are	O
objects	O
for	O
which	O
defects	O
may	O
be	O
observed	O
in	O
varying	O
locations	O
(	O
for	O
example	O
bubbles	O
in	O
laminated	O
products	O
or	O
voids	O
in	O
castings	O
)	O
,	O
a	O
defect	O
concentration	O
diagram	O
is	O
invaluable.Note	O
that	O
while	O
most	O
check	B-Application
sheet	I-Application
types	O
aggregate	O
observations	O
from	O
many	O
process	O
outputs	O
,	O
typically	O
one	O
defect	O
location	O
check	B-Application
sheet	I-Application
is	O
used	O
per	O
process	O
output	O
.	O
</s>
<s>
This	O
type	O
of	O
check	B-Application
sheet	I-Application
consists	O
of	O
the	O
following	O
:	O
</s>
<s>
When	O
the	O
process	O
distribution	O
is	O
ready	O
to	O
be	O
assessed	O
,	O
the	O
assessor	O
fills	O
out	O
the	O
check	B-Application
sheet	I-Application
's	O
heading	O
and	O
actively	O
observes	O
the	O
process	O
.	O
</s>
<s>
When	O
the	O
observation	O
period	O
has	O
concluded	O
,	O
the	O
assessor	O
should	O
reexamine	O
each	O
check	B-Application
sheet	I-Application
and	O
form	O
a	O
composite	O
of	O
the	O
defect	O
locations	O
.	O
</s>
<s>
This	O
type	O
of	O
check	B-Application
sheet	I-Application
consists	O
of	O
the	O
following	O
:	O
</s>
<s>
Note	O
that	O
the	O
defect	O
categories	O
and	O
how	O
process	O
outputs	O
are	O
to	O
be	O
placed	O
into	O
these	O
categories	O
must	O
be	O
agreed	O
to	O
and	O
spelled	O
out	O
in	O
advance	O
of	O
constructing	O
the	O
check	B-Application
sheet	I-Application
.	O
</s>
<s>
When	O
the	O
process	O
distribution	O
is	O
ready	O
to	O
be	O
assessed	O
,	O
the	O
assessor	O
fills	O
out	O
the	O
check	B-Application
sheet	I-Application
's	O
heading	O
.	O
</s>
<s>
While	O
the	O
check	B-Application
sheets	I-Application
discussed	O
above	O
are	O
all	O
for	O
capturing	O
and	O
categorizing	O
observations	O
,	O
the	O
checklist	O
is	O
intended	O
as	O
a	O
mistake-proofing	O
aid	O
when	O
carrying	O
out	O
multi-step	O
procedures	O
,	O
particularly	O
during	O
the	O
checking	O
and	O
finishing	O
of	O
process	O
outputs	O
.	O
</s>
<s>
This	O
type	O
of	O
check	B-Application
sheet	I-Application
consists	O
of	O
the	O
following	O
:	O
</s>
<s>
Check	B-Application
sheets	I-Application
are	O
not	O
limited	O
to	O
those	O
described	O
above	O
.	O
</s>
<s>
Users	O
should	O
employ	O
their	O
imaginations	O
to	O
design	O
check	B-Application
sheets	I-Application
tailored	O
to	O
the	O
circumstances	O
.	O
</s>
