公开(公告)号：US20240086564A1

公开(公告)日：2024-03-14

申请号：US18244407

申请日：2023-09-11

Applicant: Hitachi, Ltd.

Inventor： Divya SINGH ,  Satoshi KATSUNUMA ,  Toshihiko KASHIYAMA ,  Mika TAKATA ,  Prashant Kumar SHARMA

IPC: G06F21/62

CPC classification number: G06F21/6227

Abstract: To improve resource utilization efficiency of query compliance check, which is check as to whether a query complies with a restriction imposed on data. The query compliance check is roughly divided into data flow policy check as to whether a data flow policy that defines a restriction on data transfer within a county or between countries is complied with, and organization rule check as to whether an organization rule that defines a restriction on sharing outside an organization is complied with, which are hierarchically configured. By analyzing a received query, a system identifies one or more data items as target input/output (I/O) data according to the query, and executes the data flow policy check on the identified one or more data items. When a result of the data flow policy check is false, the system returns a result that the query is compliance violation without executing the organization rule check.