Research and practice on active operation and maintenance of application system in commercial banks 并列题名：Research and practice on active operation and maintenance of application system in commercial banks 并列题名：Constructing intelligent operation and maintenance framework on open system of large commercial banks Research and practice of big data governance in commercial banks Research on multidimensional evaluation of performance and application of commercial banks Constructing intelligent operation and maintenance framework on open system of large commercial banks Theory and practice of credit financing operation in the commercial bank Research on consumer credit operation mechanism of Chinese commercial banks Research on corporate governance and performance of small and medium-sized commercial banks