TRL - Technical readiness Level

• Origin: Developed by NASA in the 1970s (specifically formalized around 1974) for assessing space technology maturity.

• Definition: A systematic, metric-based method to evaluate the maturity of a technology, focusing on its technical feasibility from basic research to operational deployment. It helps identify risks and guide development in fields like aerospace, defense, and energy.

• Scale: Ranges from 1 to 9:

  • TRL 1: Basic principles observed (fundamental research).

  • TRL 2-3: Technology concept formulated and analytical/experimental proof of concept.

  • TRL 4-6: Validation in lab (TRL 4) and relevant environments (TRL 5-6), including prototypes.

  • TRL 7-8: System prototype demonstration in operational environment.

  • TRL 9: Actual system proven through successful mission operations.Technology Readiness Levels (TRL)