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How to Measure Anything: Finding the Value of Intangibles in Business
Author: Douglas W. Hubbard
Avaliable on Amazon
IIRC the book "How to measure anything" contains some advice like this: https://www.amazon.com/dp/1118539273/
The author also offers webinars, so maybe it was from him: https://www.howtomeasureanything.com
I also like this guide:
https://www.amazon.com/How-Measure-Anything-Intangibles-Busi...), then you'll be able to perceive the mindset that has significant transfer to many problems that have even just approximate answers.
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