In an era of accelerating market shifts, traditional strategic tools often fall short in delivering precise, actionable insights. This book advances Michael Porter's foundational Five Forces framework by introducing the Strategic Viability Index (SVI)-a rigorous quantification system that transforms qualitative assessments into measurable intelligence.Through structured scoring across entry barriers, supplier leverage, buyer dynamics, substitution risks, and competitive intensity, readers gain tools to evaluate market power relationships systematically.Drawing from real-world applications in manufacturing and technology sectors, the methodology supports consistent tracking, interplay analysis, and response strategies tailored to varying viability levels.Appendices provide practical templates, formulas, and industry benchmarks to facilitate immediate implementation in strategic planning, resource allocation, and decision-making processes.