Trl

Name

Description

ID

ParentID

1 - basic principles observed

Scientific research has led to observation and reports of basic principles which has evolved to applied research and development.

trl-1

2 - technology concept formulated

Practical applications for the observed basic physical principles is found and reported.

trl-2

3 - experimental proof of concept

The most critical functions of the new technology is validated by using both analytical and experimental methods.

trl-3

4 - technology validated in lab

The concept is tested to assure that the technical elements can be integrated together and achieve the desired performance, at a component and/or breadboard level.

trl-4

5 - technology validated in relevant environment

The components making up the concept is tested individually in realistic environment.

trl-5

6 - technology demonstrated in relevant environment

A model or prototype of the concept, not individual components, is tested in a relevant environment.

trl-6

7 - system prototype demonstration in operational environment

A prototype is tested in the environment in which the final product will operate, e.g. in the original NASA framework this meant to test the technology in space.

trl-7

8 - system complete and qualified

The technology is built to the specifications of the final product and is tested in the operational environment alongside all systems it will interact with.

trl-8

9 - actual system proven in operational environment

At this level the all technology development has been completed and the technology is performing as intended in the real-world environment.

trl-9