The Nigerian Government Enterprise Architecture (NGEA) is a blueprint for aligning public-sector operations and ICT resources to enable Nigeria’s digital transformation agenda. It adopts a Whole-of-Government model that streamlines business processes, information flow, and infrastructure across federal institutions. The framework breaks down reference models for business, data, application, infrastructure, security, and performance, guiding agencies to integrate services, avoid duplicated efforts, and maintain a consistent, secure approach to e-government solutions. The ultimate goal is to foster an efficient, citizen-centric public service environment.