This document summarizes the results and lessons learned from three international cooperation projects: QualiPSo, INSPIRE, and MASSIF. The key results were:
1) QualiPSo demonstrated that international cooperation improves open source software quality by creating consensus on practices.
2) INSPIRE demonstrated that critical infrastructure protection requires compatible and scalable techniques across borders.
3) MASSIF demonstrated that sharing experiences and interests can broaden individual research scopes.
The document discusses achievements, opportunities, and challenges of international cooperation.