METHOD AND SCORE MANAGEMENT NODE FOR SUPPORTING SERVICE EVALUATION WITH CONSIDERATION TO A USER'S FADING MEMORY

A method and a score management node for supporting service evaluation by obtaining a perception score reflecting an individual user's experience of a service delivered by means of a telecommunication network. When receiving network measurements related to service events when the service is delivered to the user, the score management node determines, for each service event, a quality score reflecting the user's perception of quality of service delivery and an associated significance reflecting the user's perception of importance of the service delivery, based on the network measurements. The significance is reduced over time according to a Significance Reduction Rate, SRR, reflecting the user's fading memory of the service events, and the perception score is calculated as an average of the quality scores weighted by their associated significances, wherein the calculated perception score is made available for use in the service evaluation.