This recommendation highlights the need for scoring mechanism for services, which customers interact in a high volume, in order to understand overall service quality in a holistic point of view. Customer experience management (CEM) depends on understanding multiple technical and non-technical (billing, fault repair, customer complaint resolution, etc.) aspects of customer's experience while s/he interacts with services. However, in communication network/service provider context, the network is the primary continuous contact-point from which most important insights of customer experience can be grasped. To manage customer experience better, monitoring hard-network related parameters (network delay, network utilization, etc.) is not enough at today's customer and service oriented world. Service-level view is crucial for CEM. There are many performance parameters to detect impairments in service quality but communication network/service providers need high level way of summarizing of service quality to understand customer's experience in its organization. This can be achieved by an index mechanism through establishing a correlation between key network performance parameters taking their influence on the service into consideration. Therefore, this recommendation provides a framework for generation of CEM Index per popular services of communication network/service providers based on key network performance parameters to obtain a score summarizing each customer's experience from related services in a high level way.