Object data association index system and methods for the construction and applications thereof

The present disclosure relates to an object data association index system and methods for constructing and applying the system in the field of computer technology. The disclosed system includes a plurality of objects, an object small data server, and an object index data server. The object small data server stores the object small data. The object index data server obtains an object ID and an operation ID from the object small data server, generates and stores the object index data, thereby constructing the object ID and the associated operation ID and the object data association index between the small data generated by the operation. Different data systems can thus conveniently exchange and sharing data, which lowers utilization threshold for big data and assures data association between different data systems, allows analysis of data associated model, which ultimately enhances data value.