This activity is used to define the variability category which is relevant
for a specific range of coefficient of variability of the part types. Along
with this, relevant variability factors can also be defined. A range of coefficients
of variability of a part type belongs to a specific variability category with
a specific variability factor. Variability category is used when determining
the buffer sizes of the parts defined as buffered parts.
Note: variability
is measured during the rolling time horizon for historical ADU, which is determined
by the lead time category for the part. If this time horizon is longer than
the time with issue transactions for the part, you should set the variability
category manually, since the measured variability will be unrealistically high.
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