Answer Posted / durai
A technique used to analyze/divide a universe of data into
homogeneous groups (strata) often data collected about a
problem or event represents multiple sources that need to
treated separately.
It involves looking at process data, splitting it into
distinct layers (almost like rock is stratified) and doing
analysis to possibly see a different process.
For instance, you may process loans at your company. Once
you stratify by loan size (e.g. less than 10 million,
greater than 10 million), you may see that the central
tendency metrics are completely different which would
indicate that you have two entirely different
processes...maybe only one of the processes is broken.
Stratification is related to, but different from,
Segmentation.
A stratifying factor, also referred to as stratification or
a stratifier, is a factor that can be used to separate data
into subgroups. This is done to investigate whether that
factor is a significant special cause factor.
Durai
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