olemus
(a) inimese loodud tegelik või virtuaalne objekt
Wiktionary:
1. an object made or shaped by human hand or labor
2. an object made or shaped by some agent or intelligence, not necessarily of direct human origin
3. something viewed as a product of human agency or conception rather than an inherent element
https://en.wikipedia.org/wiki/Cultural_artifact

(b) vahe- või kõrvalsaadus tarkvaraarenduses,
näiteks mudel, skript, programmifail
https://en.wikipedia.org/wiki/Artifact_(software_development)
https://en.wikipedia.org/wiki/Artifact_(UML)

artifact guidelines -- tehisejuhised
artifact set --tehistik

vt ka
- tehiseanalüüs
- tehisolem