Patent ID: 8639707
Filing Date: 2014-01-28
Classification: G06F

Abstract:
1. A retrieval device for retrieving a document file, which is provided with authority information, the retrieval device comprising: a central processing unit; and storage coupled to the central processing unit, wherein the storage stores a computer program, and wherein the central processing unit executes the computer program to perform operations, wherein the operations comprise: generating index information by extracting user identification information included in the authority information and the user identification information associated with group identification information included in the authority information, wherein the index information includes information in which the extracted user identification information is associated with the document file by storing identification information that includes the user identification information and a document identifier for the document file and storing retrieval information that includes document content and a document identifier for the document file; receiving an input of a retrieval condition and an input of user information indicating a retrieving user; and retrieving at least one document file that satisfies the retrieval condition whose input is received and in which the user identification information included in the index information coincides with the user information whose input is received.