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Technology Readiness Level. An indication of the maturity of a service. Within EOSC the three most relevant levels are: TRL 7 (Beta) "System prototype demonstration in operational environment", TRL8 (Production) "System complete and qualified" and TRL9 (Production) "Actual system proven in operational environment". Further details of these definitions may be found on the EOSC Provider Portal.
Underpinning agreement (UA)
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