Technology Readiness Level TRL Scale Lookup
Return the NASA technology maturity definition for a technology readiness level from TRL 1 through TRL 9.
Description
Technology readiness levels (TRLs) organize technology maturity from basic principles at level 1 to operational evidence at level 9.
Technology readiness levels (TRLs) organize technology maturity from basic principles at level 1 to operational evidence at level 9. This reference describes an entered level rather than assigning one to a project.1, 2
The returned values include Level name, Readiness description, Readiness stage, Technology readiness level. The How section below explains the calculation, input rules and interpretation.
When to use Technology Readiness Level TRL Scale Lookup
Use Technology Readiness Level TRL Scale Lookup when you need to evaluate the supplied records under the calculation and evidence rules below. This is a concise teaching reference. Verify original publications, context and applicable editions before relying on it; it is not a complete framework or an authoritative evaluation.
Define the question, evidence and scenario assumptions first. Supply the chosen score scales, time horizons or reference selection explicitly. Interpret generated text as a discussion template and screen labels as the stated rules.
How to use Technology Readiness Level TRL Scale Lookup and understand its results
- Define the question, evidence and scenario assumptions first. Supply the chosen score scales, time horizons or reference selection explicitly. Interpret generated text as a discussion template and screen labels as the stated rules.
- Enter technologyReadinessLevel using the field table and calculation rules, then run the tool.
- Read levelName, readinessDescription, stage, technologyReadinessLevel. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| technologyReadinessLevel | Technology readiness level | integer; minimum: 1; maximum: 9 | Required |
Choose the exact enum value or supported integer in the input table and run the lookup. The tool indexes its embedded table, returns the fields shown below and copies list fields where applicable. All supported selections and their actual returned entries are included below. It performs no network request, project measurement or forecast inference.
| Selection | Returned reference entry |
|---|---|
| 1 | levelName: Basic Principles Observed and Reported; readinessDescription: Basic principles are observed and reported.; stage: research; technologyReadinessLevel: 1 |
| 2 | levelName: Technology Concept or Application Formulated; readinessDescription: A technology concept or application is formulated.; stage: concept; technologyReadinessLevel: 2 |
| 3 | levelName: Critical-Function Proof of Concept; readinessDescription: Analytical and experimental critical-function or characteristic proof of concept is established.; stage: proof-of-concept; technologyReadinessLevel: 3 |
| 4 | levelName: Component Validation in a Laboratory Environment; readinessDescription: A component or breadboard is validated in a laboratory environment.; stage: laboratory-validation; technologyReadinessLevel: 4 |
| 5 | levelName: Component Validation in a Relevant Environment; readinessDescription: A component or breadboard is validated in a relevant environment.; stage: relevant-environment-validation; technologyReadinessLevel: 5 |
| 6 | levelName: System or Subsystem Prototype Demonstration; readinessDescription: A system or subsystem model or prototype is demonstrated in a relevant environment.; stage: relevant-environment-demonstration; technologyReadinessLevel: 6 |
| 7 | levelName: System Prototype Demonstration in an Operational Environment; readinessDescription: A system prototype demonstrated in an operational environment.; stage: system-prototype; technologyReadinessLevel: 7 |
| 8 | levelName: System Complete and Qualified; readinessDescription: A complete and qualified system.; stage: qualification; technologyReadinessLevel: 8 |
| 9 | levelName: Actual System Proven in Operational Use; readinessDescription: An actual system proven in operational use.; stage: proven; technologyReadinessLevel: 9 |
exact selection → fixed embedded reference entry Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| levelName | Level name | string |
| readinessDescription | Readiness description | string |
| stage | Readiness stage | string |
| technologyReadinessLevel | Technology readiness level | integer; minimum: 1; maximum: 9 |
{
"input": {
"technologyReadinessLevel": 5
},
"output": {
"levelName": "Component Validation in a Relevant Environment",
"readinessDescription": "A component or breadboard is validated in a relevant environment.",
"stage": "relevant-environment-validation",
"technologyReadinessLevel": 5
}
}Limitations and assumptions
This is a concise teaching reference. Verify original publications, context and applicable editions before relying on it; it is not a complete framework or an authoritative evaluation.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing fields without a declared default, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Foresight Maturity Model Integrated Stages Lookup: Foresight maturity describes how an organization develops and embeds its future-oriented work. The five embedded stages provide a teaching progression, not an accredited maturity assessment. For a complementary task, use Moore Law Transistor Density Endgame Note Lookup: Feature-size bands offer a rough process-comparison context. A node label alone cannot determine density, cost, power or performance.
Further background: Technology Readiness Levels.
References
-
Technology Readiness Levels — NASA
Similar or alternative tools
- Foresight Maturity Model Integrated Stages Lookup
Foresight maturity describes how an organization develops and embeds its future-oriented work. The five embedded stages provide a teaching progression, not an accredited maturity assessment.
- Moore Law Transistor Density Endgame Note Lookup
Feature-size bands offer a rough process-comparison context. A node label alone cannot determine density, cost, power or performance.