rootbrowseIAC-06D1session 55. Lessons Learned in Space Systems Papers1. The NASA Engineering Network: Embedding Lessons Into Engineering Processes and Learning at NASA2. Selected Systems Engineering Process Deficiencies & Their Consequences3. System Engineering Challenges on the New Horizons Project4. Down To Earth Systems Engineering: The forgotten ground segment5. Innovative Approaches to Integrated Training of Complex Systems: Lessons Learned from Crew and Ground Controller Robotics Training6. Satellite Assembly, Integration and Test (AIT) System Quality Assurance Approaches - A Brazilian Experience7. Qualitative fault tree analysis applied as a design tool in a low cost satellite design: method and lessons learned8. XMM Newton 1000 Orbits: More than 50.000 Hours Pointing at X-ray Sources