rootbrowseIAC-19D1session 55. Lessons Learned in Space Systems: Achievements, Challenges, Best Practices, Standards.Papers1. The PROBA approach: "value for money" space projects2. The achievements through 1-year GCOM-C operation after the launch3. Case Study of the Parker Solar Probe Thermal Protection System: Development of a System Level Process for High Temperature Technology Achievement4. OPS-SAT mission: from the idea to space - the lessons we have learned5. ELECTRO-MECHANICAL THRUST VECTOR CONTROL SYSTEMS FOR THE VEGA-C LAUNCHER.6. Lessons Learnt in the Deployment of Scrum in Space Hardware Development Projects7. Lessons learned on Systems of Systems Engineering: Systems Concurrent Engineering of a Constellation of Cubesat Formations8. Space Program Advocacy Can Distort Project Management and Damage Systems Engineering9. Added value of early adoption of the concurrent engineering approach throughout the project life cycle10. How to Set Requirements and Manage to Them. FRAMEWORK REFINEMENT PROPOSAL RELATIVE TO FPGA COTS. Lessons Learned at RAPIS-1 working with startup company