olemus
kasutajaliidese subjektiivne empiiriline kvaliteedinäitaja

Wiktionary:
(software, of an application, operating system, etc.) the combination of the visual design and behaviour of a user interface

ülevaateid
https://www.quora.com/Whats-the-difference-between-look-and-feel-and-design

https://simplicable.com/new/look-and-feel

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

https://www.bopdesign.com/bop-blog/2013/11/what-is-the-look-and-feel-of-a-website-and-why-its-important/

https://www.computerlaw.com/Articles/Look-and-Feel-in-Computer-Software.shtml

http://www.ashcavai.com/JLFDG05.pdf

https://southerncalifornialawreview.com/wp-content/uploads/2017/03/90_529.pdf