So sánh phương pháp

	Chuẩn hóa điểm Z	Phân tích Quan hệ Xám	Phương pháp Hellwig	Phương pháp Taxonomy
Lĩnh vực	Ra quyết định	Ra quyết định	Ra quyết định	Ra quyết định
Họ	MCDM	MCDM	MCDM	MCDM
Năm ra đời	1968	1989	1968	1951
Người khởi xướng	Hellwig, Z.	Deng, J. L.	Hellwig, Z.	Florek, K., Łukaszewicz, J., Perkal, J., Steinhaus, H., Zubrzycki, S.
Loại	Normalization (standardisation, Z-score)	Grey relational grade (reference sequence comparison)	Taxonomic distance-from-ideal (development measure)	Taxonomic distance composite index (z-score + Euclidean ideal)
Công trình gốc	Hellwig, Z. (1968). Zastosowanie metody taksonomicznej do typologicznego podzialu krajow ze wzgledu na poziom ich rozwoju oraz zasoby i strukture wykwalifikowanych kadr technicznych. Przeglad Statystyczny	Deng, J. L. (1989). Introduction to grey system theory. The Journal of Grey System	Hellwig, Z. (1968). Zastosowanie metody taksonomicznej do typologicznego podziału krajów ze względu na poziom ich rozwoju oraz zasoby i strukturę kwalifikowanych kadr technicznych. Przegląd Statystyczny	Florek, K., Łukaszewicz, J., Perkal, J., Steinhaus, H., Zubrzycki, S. (1951). Taksonomia wrocławska. Przegląd Antropologiczny
Tên gọi khác	—	—	—	—
Liên quan	3	8	8	8
Tóm tắt	Z-SCORE-NORMALIZATION (Z-Score Normalization — standardisation to zero mean and unit standard deviation) is a normalization multi-criteria decision-making (MCDM) method introduced by Hellwig, Z. in 1968. It turns a decision matrix of alternatives scored on multiple criteria into a structured, reproducible result.	GRA (Grey Relational Analysis) is a ranking multi-criteria decision-making (MCDM) method introduced by Deng, J. L. in 1989. It turns a decision matrix of alternatives scored on multiple criteria into a structured, reproducible result.	HELLWIG (Hellwig's Method — Development Pattern) is a ranking multi-criteria decision-making (MCDM) method introduced by Hellwig, Z. in 1968. It turns a decision matrix of alternatives scored on multiple criteria into a structured, reproducible result.	TAXONOMY (Taxonomy Method — Wrocław Taxonomic Development Measure) is a ranking multi-criteria decision-making (MCDM) method introduced by Florek, K., Łukaszewicz, J., Perkal, J., Steinhaus, H., Zubrzycki, S. in 1951. It turns a decision matrix of alternatives scored on multiple criteria into a structured, reproducible result.