. "H Definition of Technology Readiness Levels." Fostering Visions for the Future: A Review of the NASA Institute for Advanced Concepts. Washington, DC: The National Academies Press, 2009.
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Fostering Visions for the Future: A Review of the NASA Institute of Advanced Concepts
maintenance documentation completed. All functionality tested in simulated and operational scenarios. Verification and Validation (V&V) completed.
TRL 9 Actual system “mission proven” through successful mission operations (ground or space): Fully integrated with operational hardware/software systems. Actual system has been thoroughly demonstrated and tested in its operational environment. All documentation completed. Successful operational experience. Sustaining engineering support in place.
