This document discusses customer experience management (CEM) and how to measure customer feedback through net promoter scores (NPS). It explains that NPS measures customer satisfaction on a scale of 0 to 10 and is calculated based on the percentage of promoters minus the percentage of detractors. The document outlines how AIESEC collects NPS feedback from participants in its programs at different stages and uses the data to analyze experiences, identify issues, and improve processes to better deliver on its promises to participants.