Below is the uncorrected machine-read text of this chapter, intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text of each book. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.
Appendix D Definitions of Technology Readiness Levels TABLE D-1â 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 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. 26
