olemus
kasutamata jäetud võimaluse väärtus

Wiktionary:
(economics) the cost of an opportunity forgone (and the loss of the benefits that could be received from that opportunity); the most valuable forgone alternative

ISO/IEC TR 27016:
teatud infoturbetegevus(t)e
tulevane arvutuslik maksumus
= future estimated cost for a certain information security activity or activities

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

https://newmagazineroom.ru/en/usn/koncepciya-alternativnyh-izderzhek-oznachaet-alternativnye/

vt ka
- alternatiivväärtus