olemus
ISO/IEC/IEEE 24765, ISO/IEC 25041:
ainulaadne ja kontrollitav süsteem või tarkvaratoode teenuse andmiseks, mille peab heaks kiitma projekti sponsor või klient
= unique and verifiable system or software product to perform a service, that is subject to approval by the project sponsor or customer

ülevaateid
https://www.quora.com/What-is-the-difference-between-a-deliverable-and-an-output-in-project-management

https://en.wikipedia.org/wiki/Deliverable

https://www.simplilearn.com/what-is-a-deliverable-article

https://uk.indeed.com/career-advice/career-development/deliverables