olemus
ISO 31073:
riski tugevalt mõjutav tegur
= factor that has a major influence on risk

ülevaateid
https://www.openriskmanual.org/wiki/Risk_Factor
https://www.playbookhq.co/blog/project-risk-management-and-the-5-whys
https://en.wikipedia.org/wiki/Risk_factor_(computing)