The present invention relates to a data standardization management system, and more particularly, to a data standardization management system that collects schema information of a database to be diagnosed and performs analysis based on a database standardization guideline of a public institution. Further, according to the present invention, a plurality of user computers; A management server through which the user computer logs in; And a database server connected to the management server, including an institutional database, and providing table, entity, column, and index attribute information of the institutional database to the management server, and the user computer logs in to the management server. After performing the database management, the database management is provided with a data standardization management system for diagnosing database standardization of tables, entities, columns, and attributes of the institutional database by accessing the database server.
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