||In the conventional WWW search or P2P file sharing systems, users search for some information by using the Explicit Information such as keywords, addresses or content names. However, it is very difficult to obtain real-time information immediately just after serious accident (i.e. Fires, Earthquake, Explosion by terrorism, Traffic accidents, and so on) happens suddenly. The conventional information systems, whether it is centralized nor distributed, cannot support user accesses, since they cannot provide any contents with the Explicit Information, in such short time.
In this paper, we propose a new communication scheme named COC – Content Oriented Communications. In COC, distributed information systems don’t observe the Explicit Information but the Implicit Information (locations, time, speed, etc.). In this paper, we introduce COC, which enables us to decrease the personal damage of a disaster in a local area where the disaster occurs by searching and getting some information for the evacuation.