Data quality control method and system based on block-level data collection

The invention relates to the technical field of data quality management, in particular to a data quality control method and system based on block-level data collection. Comprising the steps of building a data model based on a block chain, converting a business demand into a data demand, positioning a data quality problem, implementing a rectification scheme to control data quality, generating an evaluation report and the like. According to the method designed by the invention, the enterprise data collection platform is established on the basis of the block chain, the comprehensiveness and timeliness of the data can be ensured, the data value can be better presented by controlling the quality of the data and ensuring high-quality data, and thus more commercial values can be obtained through the high-quality data; a corresponding system manages business data through a distributed database, can quickly discover data quality problems, rectifies the data according to standard data, further predicts and avoids qual