ormance Indicators (KPIs): - E2E KPI definitions, per category: Integrity KPIs; Utilization KPIs; Retainability KPIs. References 3GPP Technical Specification 22.261 (2019). Service requirements for next generation new services and markets. Available at: www.3gpp.org (accessed May 29, 2020). 3GPP Technical Specification 28.405 (2019). Management of Quality of Experience (QoE) measurement collection; Control and configuration. Available at: www.3gpp.org (accessed May 29, 2020). 3GPP Technical Specification 28.530 (2019). Management and orchestration; Concepts, use cases and requirements. Available at: www.3gpp.org (accessed May 29, 2020). 3GPP Technical Specification 28.531 (2019). Management and orchestration; Provisioning. Available at: www.3gpp.org (accessed May 29, 2020). 3GPP Technical Specification 28.532 (2019). Management and orchestration; Generic management services. Available at: www.3gpp.org (accessed May 29, 2020). 3GPP Technical Specification 28.533 (2019). Management and orchestration; Architecture framework. Available at: www.3gpp.org (accessed May 29, 2020). 3GPP Technical Specification 28.541 (2019). Management and orchestration; 5G Network Resource Model (NRM); Stage 2 and stage 3. Available at: www.3gpp.org (accessed May 29, 2020). 3GPP Technical Specification 28.554 (2019). Management and orchestration; 5G end to end Key Performance Indicators (KPI). Available at: www.3gpp.org (accessed May 29, 2020). 3GPP Technical Specification 28.552 (2019). Management and orchestration; 5G performance measurements. Available at: www.3gpp.org (accessed May 29, 2020). 3GPP Technical Specification 28.622 (2019). Telecommunication management; Generic Network Resource Model (NRM) Integration Reference Point (IRP); Information Service (IS). Available at: www.3gpp.org (accessed May 29, 2020). 3GPP Technical Report 28.861 (2019). Telecommunication management; Study on the Self-Organizing Networks (SON) for 5G networks. Available at: www.3gpp.org (accessed May 29, 2020). 3GPP Technical Specification 32.101 (2019). T