Intuition vs Analytics in UX

Much like economics, UX is a very polarized field. On one hand, you have the traditional practitioners who believe good UX is solely the product of good intuition. These people tend to have backgrounds in design, psychology, marketing, and other arts/social sciences. On the other camp, we find the quants who believe everything can be objectively distilled into numbers. These individuals most likely received an education in an area related to data science. As in many other polarized arguments, the best answer lies somewhere in between. A successful UX team will know where exactly to draw the line on every instance.

Here’s what I’ve learned thus far:

With all that said, the actual metrics/KPIs used will likely be very tied to the product. There are plenty of commonly used metrics, such as daily active users, time per session, and retention. However, UX cannot directly be measured, so all you have are proxies. None of those tells you how much value the user is getting, even net promoter score is a derivation. Some of the best KPIs are very tied to the business value proposition. For example Yelp focuses on cumulative number of reviews, wikipedia on edits and active editors, and What’s App on daily messages.