Product & Engineering
Validating SaaS Product-Market Fit: A Three-Stage, Data-Driven Framework
This article outlines a three-stage, data-driven framework for validating SaaS product-market fit. It details how to assess problem-solution fit, engagement, and business viability using metrics like the Sean Ellis test, P-E-T framework, LTV:CAC, and retention curves.
Marek Kowalski·October 20, 2026
