# Technology readiness levels at 40: A study of state-of-the-art use, challenges, and opportunities

> Research article (2015 Portland International Conference on Management of Engineering and Technology (PICMET), 2015) · cited 118× · AI/ML

**Wikidata**: [openalex:W3122588995](https://www.wikidata.org/wiki/openalex:W3122588995)  
**Source**: https://4ort.xyz/entity/technology-readiness-levels-at-40-a-study-of-state-of-the-art-use-challenges-and-opportunities