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Jan 23, 2026 · Product Management

Essential PM Skills: Master the Four‑Quadrant, Nine‑Grid, and 5‑Layer UX Framework

The article walks product managers through three core analytical tools—the Eisenhower four‑quadrant time‑management matrix, the Mandala‑style nine‑grid thinking method, and the five‑layer user‑experience model—explaining their principles, step‑by‑step application, and real‑world examples to boost decision‑making and product quality.