Introduction
Struggling to Do User Research with Limited Resources? You are not alone. Many product managers, designers, and indie developers face this common challenge.
When you're not a professional researcher, it’s hard to know how deep to go, how to break the research into stages, and who the results are for. As a result, people often throw all research activities together—only to end up with no real insight or actionable decisions.
Jane Austin, a well-known design leader, introduced a simple but powerful model to solve this problem: the Research Funnel.

This model helps you structure your research based on how close you are to the problem, so you can make better use of your time, energy, and findings.
Three Levels of the Research Funnel
The Research Funnel breaks all user research into three categories, arranged from broad discovery to detailed validation. The idea is to match your research method to your current goal.