Trouble Not Found metrics is used to measure the
performance of a repair process since the technician behavior is not directly
recorded, analyzed, or utilized in the context of the Quick Serve repair
process. These
metrics indicate whether a repaired part was properly diagnosed and replaced
and serve as a proxy to overall repair efficiency. When a replaced part is
found not to be the root cause of the failure, the part is marked as TROUBLE
NOT FOUND (TNF).
The Service Providers has been ranked based on their TNF
Performance. The Service Providers are ranked every month based on their previous
12 months’ TNF performance.