Your Friend Alexis Needed a New Outfit for Work and Began

Your friend Alexis needed a new outfit for work and began the General Model of Customer Experience with a need recognition and went through a process including the purchase. You were helping her all along the way, but now it's time to see if the need is still there by comparing performance to expectation, known as:

A) cost-benefit analysis.
B) feedback.
C) internal measurements.
D) satisfaction.