เปรียบเทียบวิธี

	Porter's Five Forces Industry Analysis	Strategic Importance-Performance Analysis
สาขาวิชา	การจัดการเชิงกลยุทธ์	การจัดการเชิงกลยุทธ์
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1979	1977
ผู้ริเริ่ม	Michael E. Porter	John A. Martilla & John C. James
ประเภท	Industry-attractiveness framework based on five competitive forces	Two-dimensional attribute prioritization grid
แหล่งต้นตำรับ	Porter, M. E. (1979). How Competitive Forces Shape Strategy. Harvard Business Review, 57(2), 137-145.	Martilla, J. A., & James, J. C. (1977). Importance-Performance Analysis. Journal of Marketing, 41(1), 77-79.
ชื่อเรียกอื่น	Five Forces Framework, Porter Competitive Forces Analysis, Industry Attractiveness Analysis, Competitive Forces Model	Strategic IPA Grid, Importance-Performance Matrix for Strategy, Attribute Prioritization Grid, Action Grid Analysis
ที่เกี่ยวข้อง	3	3
สรุป	Porter's five forces framework explains the underlying profitability of an industry through five competitive forces that together determine how much of the value an industry creates is captured by its firms rather than competed or bargained away. Introduced in Michael Porter's 1979 Harvard Business Review article and developed fully in his 1980 book Competitive Strategy, the framework identifies the threat of new entrants, the bargaining power of suppliers, the bargaining power of buyers, the threat of substitute products, and the intensity of rivalry among existing competitors as the collective forces that set an industry's profit potential. The stronger these forces, the more pressure on margins and the less attractive the industry; the weaker they are, the more room firms have to earn superior returns. Five forces analysis assesses each force to judge industry attractiveness and, crucially, to find a position where a firm can defend itself against the forces or shift them in its favor.	Strategic importance-performance analysis (IPA) is a simple, visual method for prioritizing attributes by plotting how important each one is against how well the organization performs on it. Martilla and James introduced IPA in 1977 to help managers translate satisfaction research into action, arguing that measuring performance alone is not enough — you must know which attributes matter. The two dimensions define a grid with four action quadrants, from 'concentrate here' (high importance, low performance) to 'possible overkill' (low importance, high performance). Used strategically, IPA turns a list of capabilities, service features, or strategic factors into a clear map of where to invest, where to maintain, and where resources may be wasted, making it a lightweight complement to more formal prioritization tools.