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Capabilities for the Future: An Assessment of NASA Laboratories for Basic Research (2010)

Chapter: Appendix B: Technology Readiness Level Descriptions

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Suggested Citation:"Appendix B: Technology Readiness Level Descriptions." National Research Council. 2010. Capabilities for the Future: An Assessment of NASA Laboratories for Basic Research. Washington, DC: The National Academies Press. doi: 10.17226/12903.
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B
Technology Readiness Level Descriptions

Technology Readiness Level (TRL)

Definition

Hardware Description

Software Description

Exit Criteria

1

Basic principles observed and reported

Scientific knowledge generated underpinning hardware technology concepts/applications

Scientific knowledge generated underpinning basic properties of software architecture and mathematical formulation

Peer reviewed publication of research underlying the proposed concept/application

2

Technology concept or application formulated

Invention begins, practical application is identified but is speculative, no experimental proof or detailed analysis is available to support the conjecture

Invention begins, practical application is identified but is speculative, no experimental proof or detailed analysis is available to support the conjecture. Underlying algorithms are clarified and documented

Documented description of the application/concept that addresses feasibility and benefit

3

Analytical and/or experimental critical function or characteristic proof-of-concept

Analytical studies place the technology in an appropriate context and laboratory demonstrations, modeling and simulation validate analytical prediction

Development of limited functionality to validate critical properties and predictions using non-integrated software components

Documented analytical/experimental results validating predictions of key parameters

4

Component or breadboard validation in laboratory

A low fidelity system/component breadboard is built and operated to demonstrate basic functionality and critical test environments and associated performance predictions are defined relative to the final operating environment

Key, functionally critical, software components are integrated, and functionally validated, to establish interoperability and begin architecture development. Relevant environments defined and performance in this environment predicted

Documented test performance demonstrating agreement with analytical predictions. Documented definition of relevant environment

5

Component or breadboard validation in a relevant environment

A mid-level fidelity system/component brassboard is built and operated to demonstrate overall performance in a simulated operational environment with realistic support elements that demonstrates overall performance in critical areas. Performance predictions are made for subsequent development phases

End-to-end software elements implemented and interfaced with existing systems/simulations conforming to target environment. End-to-end software system, tested in relevant environment, meeting predicted performance. Operational environment performance predicted. Prototype implementations developed.

Documented test performance demonstrating agreement with analytical predictions. Documented definition of scaling requirements

6

System/subsystem model or prototype demonstration in a relevant environment

A high-fidelity system/component prototype that adequately addresses all critical scaling issues is built and operated in a relevant environment to demonstrate operations under critical environmental conditions

Prototype software partially integrated with existing hardware/software systems and demonstrated on full scale realistic problems

Documented test performance demonstrating agreement with analytical predictions

7

System prototype demonstration in space

A high fidelity engineering unit that adequately addresses all critical scaling issues is built and operated in a relevant environment to demonstrate performance in the actual operational environment and platform (ground, airborne or space)

Prototype software is fully integrated with operational hardware/software systems demonstrating operational feasibility

Documented test performance demonstrating agreement with analytical predictions

8

Actual system completed and flight qualified through test and demonstration

The final product in its final configuration is successfully demonstrated through test and analysis for its intended operational environment and platform (ground, airborne or space)

The final product in its final configuration is successfully demonstrated through test and analysis for its intended operational environment and platform (ground, airborne or space)

Documented test performance verifying analytical predictions

9

Actual system flight proven through successful mission operations

The final product is successfully operated in an actual mission

The final product is successfully operated in an actual mission

Documented mission operational results

SOURCE: “NASA Research and Technology Program and Project Management Requirements,” NPR 7120.8, Appendix J, February 5, 2008.

Suggested Citation:"Appendix B: Technology Readiness Level Descriptions." National Research Council. 2010. Capabilities for the Future: An Assessment of NASA Laboratories for Basic Research. Washington, DC: The National Academies Press. doi: 10.17226/12903.
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Over the past 5 years or more, there has been a steady and significant decrease in NASA's laboratory capabilities, including equipment, maintenance, and facility upgrades. This adversely affects the support of NASA's scientists, who rely on these capabilities, as well as NASA's ability to make the basic scientific and technical contributions that others depend on for programs of national importance. The fundamental research community at NASA has been severely impacted by the budget reductions that are responsible for this decrease in laboratory capabilities, and as a result NASA's ability to support even NASA's future goals is in serious jeopardy.

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