olemus
ISO 29481
nõuded, mis kirjeldavad (äri)tegevuse väljenduses,
mida tuleb väljastada või sooritada
= requirements that describes in business terms what needs to be delivered or accomplished

ülevaateid
https://en.wikipedia.org/wiki/Business_requirements

https://requirements.com/Content/What-is/what-are-business-requirements-1

https://netmind.net/en/business-vs-functional-requirements-who-cares/

https://www.altexsoft.com/blog/business-requirements-document/

https://thebusinessanalystjobdescription.com/business-requirements/

https://www.examples.com/business/business-requirements-document.html