DISTRIBUTION HISTORY MANAGEMENT SYSTEM AND METHOD FOR MANAGING/RETRIEVING DISTRIBUTION HISTORY

摘要

PPROBLEM TO BE SOLVED: To securely and efficiently perform management and retrieval of commercial products by link information. PSOLUTION: Commodity history information 10 collects node lists from all sites and holds only link information with respect to each commodity node (parent node link, parent site link). A management/retrieval server 20 extracts a terminal of a graph in accordance with presence/absence of the link information when holding data having a flat structure by processes A-D, and performs comparison, presence confirmation and duplication removal of IDs during this extraction to extract a most ancestral node. After refinement based on node type conditions, by addition of another names, comparison, presence confirmation and duplication removal of IDs, a most ancestral node is extracted within a range satisfying the conditions. PCOPYRIGHT: (C)2009,JPO&INPIT