Tracing system having follow-up distribution section for distributing information based on a distribution history of prior distributed information stored in distribution history storing section

摘要

When information held in an information holding section is distributed from an information distribution section to another information intervention system, a distribution sensing section senses the information distribution and records a distribution history thereof in a distribution history holding section. When an instruction for tracing information is given,a history collection section reads out the distribution history related to the information to be traced from the distribution history holding section, detects the distribution destination of the information, and instructs the information intervention system of the distribution destination to trace the information. History information is collected from the instructed information intervention system and is stored in a collected history holding section. The collected history information is analyzed by a tracing analysis section. For example, distribution routes, etc., are displayed on a tracing result display section.