Database System and Control Method Therefor

Abstract

In an open environment, a consensus building means for maintaining dependability throughout the entire life cycle of a target system between stakeholders is provided, thereby appropriately operating the target system in accordance with the content of an agreement between the stakeholders. A consensus building support tool provides a support for consensus building through an argument regarding an ordinary operation state of a target system. History obtained in the process of the consensus building is recorded in a database layer as an agreement graph. A monitoring node tool detects deviation from the ordinary operation state of the target system based on an actual operation state of the target system and the agreement graph. A contract generating tool extracts information data regarding the consensus building from the agreement graph when the deviation from the ordinary operation state is detected in the target system.

Dependencies are inferred from the claim text.