What is the difference in ROI, KPIs, OKRs metrics? how and when to get them?

So I have decided this year that I would like to learn more about data informed design and I have been hearing and reading a lot about the following ways of measuring: ROI, KPIs, OKRs and I'm confused with the 3 of them. I also read about the UX metrics frameworks like the HEART from google.

So my questions are:

  • What is the difference among these 3 (ROI, KPIs and OKRs)?

  • WHEN and HOW to get the data for each one in a project?

  • should we get the 3 of them in a project or choose 1?

  • Finally, does the HEART framework from google helps defining one of them? if not, what is the difference in between those metrics and ROI, KPIs and OKRs?

Thank you in advance,

Tags: