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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