olemus
(a) katseline versioon, mis ei ole veel valmis levitamiseks
=
an early, barely-functional version of a program which can be used for demonstration purposes

(b) reklaamiotstarbeline piirangutega versioon
=
a special version of a finished program (frequently with some restrictions) which is distributed at little or no cost to the user for promotional purposes

ülevaateid
https://snov.io/glossary/demo/

http://www.differencebetween.info/difference-between-trial-version-demo-version-and-shareware

https://blog.capterra.com/free-trial-vs-free-demo/

https://www.therevisionist.org/software-engineering/cnss/prototype-vs-demo/

vt ka
- beetaversioon
- demo
- prototüüp