Appendix B: NGDC maturity model Table B.1 NGDC maturity model: quality of experience Level Description Enterprise cannot correlate between the three pillars of QoE (cost, user experience, and efficiency). The relationships do not exist or are largely estimated. Enterprise cannot derive costing for the majority of revenue-generating applications. Enterprise does not have a grasp on the performance of applications and how it affects user experience. Enterprise has an understanding of relationships between cost, user experience, and efficiency. Enterprise has taken steps in understanding all aspects of user experience and stabilized overall user experience at the expense of cost and efficiency. Enterprise has taken interim steps to stabilize user experience and developed plans to address cost and efficiency. Enterprise has addressed cost and efficiency in addition to user experience. Chaotic Rationalized