| Calculating actual weightingsWhen you do a full update
of the vendor ratings in the Update Vendor Rating (tdpur8850m000) session, the calculation of actual weightings
is the first stage in the calculate/update vendor rating procedure. After the rescale, the
weightings represent a true percentage. So, weightings are not changed relative
to other weightings. Full update When you recalculate all criteria weightings, the
calculation is as follows: Summing the weightings The weightings for all the objective criteria and the level 0
subjective criteria are summed. Recalculating objective and level zero subjective
criteria The following
recalculation takes place for the objective criteria and level zero subjective
criteria:
New weighting = (existing weighting/objective weightings and level zero subjective weightings) * 100 Calculating subjective weightings with level one or
higher The subjective weightings with level one or higher are
calculated in the same way as the recalculation of one criterion, which is
stated below.
Recalculation for one subjective criterion When you recalculate the weightings for one criterion, the
calculation is as follows:
New weighting = (current weighting/sum of all weightings) * 100 If the selected subjective criterion has level one or higher,
the following applies:
Sum of all weightings = sum of all the weightings whose parent is the selected subjective criterion. Example The existing objective weightings and subjective weightings
are: Objective criteria | Weighting |
---|
Delivery time | 60 | Quality | 60 | Order confirmation | 10 |
Level | Subjective criteria | Weighting |
---|
0 | Customer service | 40 | 1 | Call handling | 14 | 1 | Product knowledge | 6 | 0 | Delivery service | 30 | 1 | Flexibility | 25 | 1 | Paperwork quality | 15 |
Full update - Sum of all objective weightings and level 0 subjective
weightings = 60 + 60 + 10 + 40 + 30 = 200.
-
The new weightings are: Delivery time 60/200 * 100 = 30% Quality 60/200 * 100 = 30% Order confirmation 10/200 * 100 = 5% Customer service 40/200 * 100 = 20% Delivery service 30/200 * 100 = 15%
- The subjective weightings of level one or higher are
recalculated for customer service as stated below.
Recalculation for one criterion Normalization of, for example, the weightings for customer
service: - Total of weightings = 14 + 6 = 20.
- New call handling weighting = (14/20) * 100 = 70%.
- New product knowledge weighting = (6/20) * 100 = 30%.
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