The tragedy of commons shows how important the agent interaction is for the existence of an open system. The phenomenon known as the ‘tragedy of commons’ shows how important the agent interaction is for the existence of an open system. It develops in this way; every herdsman in an open pasture behaves individually for maximizing their own gain that is adding new cattles to their own herd. As each herdsman looks at his own reality denying the truth of the commons, [that it is limited] they cause the breakdown of the system in the absence of interaction with other herdsmen and defined common interests.