Appendix D
Definitions of Technology Readiness Levels

TABLE D-1 Definitions of Technology Readiness Levels (TRLs)

TRL

Definition

Level 1

Basic principles observed and reported

Level 2

Technology concept and/or application formulated

Level 3

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

Level 4

Component and/or breadboarda validation in laboratory environment

Level 5

Component and/or breadboard validation in a relevant environment

Level 6

System/subsystem model or prototype demonstration in a relevant environment (ground or space)

Level 7

System prototype demonstration in an operational (space) environment

Level 8

Actual system completed and (flight) qualified through test demonstration (ground and space)

Level 9

Actual system (flight) proven through successful mission operations

aTemporary prototype of an electronic circuit used for experimenting with circuit designs.



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Appendix D Definitions of Technology Readiness Levels TABLE D-1 Definitions of Technology Readiness Levels (TRLs) TRL Definition Level 1 Basic principles observed and reported Level 2 Technology concept and/or application formulated Level 3 Analytical and experimental critical function and/or characteristic proof of concept Component and/or breadboarda validation in laboratory Level 4 environment Level 5 Component and/or breadboard validation in a relevant environment Level 6 System/subsystem model or prototype demonstration in a relevant environment (ground or space) Level 7 System prototype demonstration in an operational (space) environment Level 8 Actual system completed and (flight) qualified through test demon- stration (ground and space) Level 9 Actual system (flight) proven through successful mission operations aTemporary prototype of an electronic circuit used for experimenting with circuit designs.