It is remarkable that before implementing any solution, you first plan to discuss it with the employees. I respect you for that. In my opinion, if you want to explain to them what it is and how it works most concisely and qualitatively, it is to send them the link
https://digitalho.com/blog/heor/ or print the text of the blog and give it to them directly. After reading this text, everyone will understand what it is and how it works.