Group 1 - The core viewpoint of the articles emphasizes the implementation of the Chief Data Officer (CDO) system in Nanjing to enhance digital transformation and public data utilization [1][2] - The CDO system has been expanded to 116 municipal agencies, public institutions, and state-owned enterprises, achieving near-complete coverage [1] - The CDO is supported by a team responsible for overseeing digital transformation, data resource management, and cross-departmental data sharing [1] Group 2 - The introduction of the CDO system is backed by the local legislation "Nanjing City Digital Governance Regulations," effective from May 1 [2] - Significant achievements have been made in public data resource management, including the development of a national-level emergency management model and a low-code platform for police data modeling [2] - The CDOs from various departments have successfully initiated projects that enhance data utilization and safety management, contributing to the city's digital economy [2]