SERVICE MANAGEMENT DEVICE, DATA ACCESS CONTROLLER, AND DATA RETRIEVAL METHOD

摘要

PROBLEM TO BE SOLVED: To raise processing efficiency when a certain tenant executes drill through from data tabulation results of the whole system to individual data about each tenant when each tenant has a DB and a DWH individually in a multi-tenant SaaS system.

SOLUTION: A service management device 117 tabulates detail data collected from a plurality of SaaS servers 101 for store to generate the whole tabulation result 115, and generates an ACL subset 116 indicating an SaaS server 101 for store for accumulating the detail data in which permission of access is indicated from a request source of the whole tabulation result 115 by a common ACL 126 among the detail data. The SaaS server 101 for store at the request source of the whole tabulation result 115 executes the drill through from a part of the whole tabulation result 115 to the detail data accumulated in the SaaS server 101 for store indicated by the ACL subset 116.

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