| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an information management device, an information management method and a program that are capable of shortening update processing time of retrieval result cache while preventing occurrence of unconformity in member information of a group defined by retrieval conditions. <P>SOLUTION: An information management device 100 comprises: a retrieval processing part 12 for retrieving a member of a group defined by retrieval conditions; a retrieval result storage part 20 for storing a retrieval result in the bitmap form as index information; a group attribute storage part 32 for storing an attribute associated with the definition as group attribute information, with respect to each group; and a retrieval result update processing part 33 for, when the attribute information of the member is changed, selecting a group associated with an attribute identical to an attribute of the changed attribute information, based on the group attribute information, and updating a portion corresponding to the selected group in the index information, in accordance with a result of determining whether or not the member whose attribute information is changed meets the definition of the selected group. <P>COPYRIGHT: (C)2012,JPO&INPIT |
