Which customer experience metric was developed most recently?

Customer experience metrics have evolved significantly over the decades as businesses seek more accurate ways to measure satisfaction and loyalty. Different metrics capture different aspects of the customer journey, from satisfaction to effort to likelihood of recommendation. Understanding these metrics and when they were introduced helps businesses track how customer experience measurement has advanced over time.

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Net Promoter Score (NPS)
Customer Satisfaction Score (CSAT)
Customer Effort Score (CES)
Net Emotional Value (NEV)