This document summarizes and compares several project management certifications and frameworks: PMI PMBOK, IPMA, and PRINCE2. It outlines the key knowledge areas, competencies, and methodologies covered by each. The PMBOK focuses on knowledge areas and inputs/outputs across a project lifecycle. IPMA emphasizes competencies in experience, method application, and leadership behaviors. PRINCE2 provides a methodology with principles, themes, and processes for steering projects based on quality, time, cost, and risk. Overall, the document provides a high-level overview of the approaches taken by prominent project management certifications and standards.