DATA DISTRIBUTION SYSTEM, DATA BUSINESS GATEWAY SYSTEM FOR REALIZING DATA DISTRIBUTION SYSTEM, AND DATA DISTRIBUTION METHOD

摘要

The present invention provides a data distribution system capable of performing data trading openly with a plurality of systems participating. The present invention also provides a data business gateway system capable of liberalizing bidirectional data distribution among a plurality of operators and having a junction function to promote data distribution. A gateway means is configured having a data junction function for liberalizing and promoting data distribution by importing closed data supplied from a service operator system and open data supplied from an open system, normalizing and then managing the imported data, performing a disclosure allowability determination as to whether or not to disclose data derived by blending and mixing the normalized data with other data to a requester when data access is requested from a data recipient side, and providing searched and extracted data when data disclosure is determined to be allowable.