hello there now let's talk about
measurement system analysis measurement
system analysis is one critical
component of the measure phase this is
being taught in green belt black belt
and master black belt but let us give
you an idea of how really important it
is before you do any data analysis
measurement system analysis should be
conducted this six to answer this
question how would we know that the data
we have gathered reflects a reliable
source in short how do we know that our
data is correct now you might ask why is
it important for us to have a good data
or a clean data let me give you a
picture of what they call garbage in
garbage out remember that the data that
we will be collecting will be used for
decision-making let's go back a little
on the deed approach data insights and
decision when you have the ruinous data
therefore you will also have wrong
decisions and this will mean a lot to
your process and even to your
organization at large that is why we
have to undertake this critical question
on data accuracy and reliability there
are several sources of variation are
what we call measurement system error if
I talk about measurement system analysis
if we can see here there is always
variation from the output of a process
it could either be unit to unit for the
true variation and worst case there are
a lot of errors which can be classified
as measurement system editor you can see
now terms like precision and accuracy we
will not focus on this but rather on the
concepts of where are this tradition
coming from using swype as our guide you
can see that the possible sources of
error are the standard itself we don't
have any idea or we don't have clear
understanding of the standard the
workpiece or part there is something
wrong with the part or the service that
we are producing or handling or maybe
the instruments they are not calibrated
or not fit to use
the specific application it could be
also brought by the person doing the
hawk training of data or the procedure
that has been installed or maybe
combination of both the person doesn't
know how to use the procedure and also
one critical component will be the
environment this has an effect to the
data collection process now as you
collect your data and before you do your
analysis as yourself first is our data
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