Fecha de publicación: 06/05/2022 Fuente: Wipo "BigData" The invention relates to the technical field of data processing, in particular to a data management system based on a big data technology. The system comprises a system management module used for verifying user login information data and managing user account data; the cost accounting module is used for calculating the cost according to the inventory inspection data, the labor cost data, the manufacturing cost data and the material loss and return cost data; and the report generation module is used for generating a cost report according to the bill accounting detail data after the cost is calculated. By means of an informationized data management system, on the basis of the product production requirements of the machine manufacturing industry, the production and operation management efficiency of enterprises is improved, production is standardized, the operation cost is reduced, effective cost data is analyzed and obtained from original and scattered data, and the enterprise can obtain the effective cost data under the support of correct and effective data. Product production is formulated and adjusted, so that the processing cost of various types of products can be quickly calculated, and the comprehensive management cost of an enterprise is reduced.