TTS GLOBAL
Use consistent definitions
Keep lot pass rate, sampled nonconforming-unit rate and customer return rate separate. Record period, sample size and product mix. A supplier handling a more complex assortment can look worse if categories are combined without context. Missing data should remain visible instead of being treated as a perfect result.
Agree weighting and escalation
Choose quality, delivery, responsiveness and evidence-management measures that support sourcing decisions. Define thresholds from your requirements and history rather than copying a generic percentage. A critical safety finding may require separate escalation even if the supplier’s total weighted score remains high.
Turn the score into a work plan
Share the supporting records and allow the supplier to correct factual errors. Assign an owner, deadline and evidence requirement to each agreed action. Illustrative case: repeat packaging failures should lead to a defined packing-process correction and follow-up check, not only a lower score next month.