Technology Readiness Levels (TRLs) - Level 9: Actual System Proven in Operational Environment (competitive manufacturing in the case of key enabling technologies)
Technology Readiness Levels (TRLs) - Level 6: Technology demonstrated in relevant environment (industrially relevant environment in the case of key enabling technologies)
Technology Readiness Levels (TRLs) - Level 5: Technology validated in relevant environment (industrially relevant environment in the case of key enabling technologies)