电信管理论坛（TMF）：2025年通信服务提供商（CSP）开放数字架构进展评估报告（英文版）

T hen in the late 2000s and 2010s communications service providers (CSPs) undertook IT transformation projects in an effort to modernize their support systems. These projects were either gradual brownfield migrations or “big bang” transformations, with systems integrators and large best-of-suite vendors often contracted by CSPs to manage large, multi-year projects. But IT transformation initiatives have had mixed success. There was a (misplaced) belief that the very act of moving applications