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Review of NASA's Exploration Technology Development Program An Interim Report (2008) / Chapter Skim
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D Definitions for Technology Readiness Levels
Pages 58-59

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From page 58...
... TRL Definition Hardware Description Software Description Exit Criteria 1 Basic Scientific knowledge generated Scientific knowledge generated Peer reviewed principles underpinning hardware underpinning basic properties of publication of research observed and technology software architecture and underlying the reported. concepts/applications.
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From page 59...
... 7 System A high fidelity engineering unit Prototype software exists having all Documented test prototype that adequately addresses all key functionality available for performance demonstration critical scaling issues is built demonstration and test. Well demonstrating in an and operated in a relevant integrated with operational agreement with operational environment to demonstrate hardware/software systems analytical predictions.
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Key Terms

  • analytical predictions
  • operational environment
  • readiness levels
  • exit criteria
  • knowledge generated

  • software description
  • critical scaling
  • scaling issues
  • documented definition
  • hardware description

  • technology readiness
  • final product
  • trl definition
  • prototype software
  • operational hardware

  • engineering processes
  • limited documentation
  • validate analytical
  • realistic support
  • documented mission

  • flight proven
  • demonstrates overall
  • detailed analysis
  • predicted performance
  • support elements

  • critical test
  • built demonstration
  • practical application
  • engineering unit
  • prototype implementations


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