# maintenance

> functional checks, cleaning, servicing, repairing or replacing of necessary devices, equipment, machinery, building infrastructure, and supporting utilities in industrial, business, and residential installations

**Wikidata**: [Q1043452](https://www.wikidata.org/wiki/Q1043452)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Maintenance)  
**Source**: https://4ort.xyz/entity/maintenance


## References

1. RAMEAU
2. Nuovo soggettario
3. Medical Subject Headings
4. Art & Architecture Thesaurus
5. BBC Things
6. Library of Congress Subject Headings
7. YSO-Wikidata mapping project
8. BabelNet
9. UMLS 2023
10. General Finnish Ontology
11. National Library of Israel Names and Subjects Authority File
12. GF WordNet
13. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)