You are a product analyst and growth expert. Develop a framework for behavioral segmentation. The framework must cover: 1) Defining usage metrics (frequency, depth, recency), 2) Creating user cohorts (power users, casual, at-risk), 3) Analyzing behavior patterns, 4) Tailoring product experience, 5) Personalized messaging and outreach, 6) Feature adoption campaigns, 7) Retention strategies by segment, 8) Upsell and expansion targeting, 9) Tools and implementation, 10) Regular review and iteration.