olemus
tarkvara tarnimise meetod, mis võimaldab kliendil saada kaugpääsuga kasutada teenuseandja rakendusi
= a software delivery method that enables a customer to remotely access the service provider's applications

ISO/IEC 17788:
pilvteenuse liik,, millega pilvteenuse kliendile antav pilvvõimete tüüp on rakendusevõime
= cloud service category in which the cloud capabilities type provided to the cloud service customer is an application capabilities type

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

https://home.cs.colorado.edu/~kena/classes/5828/s12/presentation-materials/dibieogheneovohanghaojie.pdf

https://www.oracle.com/a/ocom/docs/applications/saas-for-dummies-3rdedition.pdf

http://ceur-ws.org/Vol-2305/paper09.pdf