The final lesson states the boundary: deterministic weighted-score arithmetic only.

highlighted = computed this step

Deterministic Scorecard

The scorecard uses fixed weights and fixed scores.

deterministic scorecard arithmetic\text{deterministic scorecard arithmetic}
Weighted supplier scorecardThe chart shows the base winner and the exact what-if tie.what-if scorecardbase winner Asuppliercostqualitylead-timetotalwinnerA86915/2yesB78643/6noC69822/3noweights: cost 1/2; quality 1/3; lead-time 1/6supplier AA 15/2supplier BB 43/6supplier CC 22/3what-if: A 23/3; B 7; C 23/3what-if winner tie A/C

Not Weight Proof

The arithmetic does not prove the weights are right.

weight validity is outside scope\text{weight validity is outside scope}
Weighted supplier scorecardThe chart shows the base winner and the exact what-if tie.what-if scorecardbase winner Asuppliercostqualitylead-timetotalwinnerA86915/2yesB78643/6noC69822/3noweights: cost 1/2; quality 1/3; lead-time 1/6supplier AA 15/2supplier BB 43/6supplier CC 22/3what-if: A 23/3; B 7; C 23/3what-if winner tie A/C

Not Recommendation

The largest score is not a procurement recommendation by itself.

supplier due diligence remains outside scope\text{supplier due diligence remains outside scope}
Weighted supplier scorecardThe chart shows the base winner and the exact what-if tie.what-if scorecardbase winner Asuppliercostqualitylead-timetotalwinnerA86915/2yesB78643/6noC69822/3noweights: cost 1/2; quality 1/3; lead-time 1/6supplier AA 15/2supplier BB 43/6supplier CC 22/3what-if: A 23/3; B 7; C 23/3what-if winner tie A/C

Honesty Note

This is deterministic weighted-score arithmetic only. It does not prove the weights are right, make a procurement recommendation, model uncertainty, or replace supplier due diligence.

deterministic weighted-score arithmetic only\text{deterministic weighted-score arithmetic only}
Weighted supplier scorecardThe chart shows the base winner and the exact what-if tie.what-if scorecardbase winner Asuppliercostqualitylead-timetotalwinnerA86915/2yesB78643/6noC69822/3noweights: cost 1/2; quality 1/3; lead-time 1/6supplier AA 15/2supplier BB 43/6supplier CC 22/3what-if: A 23/3; B 7; C 23/3what-if winner tie A/C