Data processing method, device and system and storage medium

The invention discloses a data processing method, device and system and a storage medium, and the method comprises the steps: constructing a quality problem dictionary according to an experience database, and the quality problem dictionary comprises data quality problems and corresponding problem identifiers; acquiring to-be-processed data, and identifying a target data problem existing in the to-be-processed data; querying the target data problem in a quality problem dictionary to obtain a corresponding target problem identifier; adding the target question identifier into the target data through a predefined field; reading a plurality of target fields in the target data, judging the plurality of target fields according to a preset fusion rule, and determining whether conflict data exists or not according to a judgment result; when the conflict data exists, identifying a service application scene of the current data, and selecting an authority source judgment strategy according to an identification result; an