olemus
defines a sequence of actions that a business performs that yields an observable result of value (a work output) to a particular business actor or that shows how the business responds to a business event

ülevaateid
https://en.wikipedia.org/wiki/Use_case
(the "Business use case" subsection)

https://ec.europa.eu/research/participants/documents/downloadPublic?documentIds=080166e5c657abb1&appId=PPGMS