The objective of this study is to prioritize the Total Quality Management (TQM) factors based on fuzzy Analytical Hierarchy Process (AHP) method in Vietnamese supporting industries. Through an in-depth literature review, eight criteria were identified. These criteria were then divided into 32 sub-criteria. The fuzzy AHP is used to determine the percent weightings of eight categories of performance criteria that were identified via a review of the quality-management literature. These criteria include management commitment, role of the quality department, training and education, continuous improvement, quality policies, quality data and reporting, communication to improve quality, and customer satisfaction orientation. An empirical analysis of the criteria of each stage using the fuzzy AHP methodology and the expert opinion of quality management are used to evaluate the percent weightings of the criteria and sub-criteria that are synonymous with TQM implementation. The results showed that management commitment is the most critical factor; among sub-criteria, supports and responsibilities of top management is the most important. The study also identified the rank order of critical success factors of TQM. The findings suggest a generic hierarchy model for organizations to prioritize the critical factors and formulate strategies for implementing TQM in supporting industries, as well as other industries in Vietnam.

Abstract
1. Introduction
2. Fuzzy Analytic Hierarchy Process (FAHP)
3. Prioritizing TQM Factors based onFuzzy AHP
    3.1. Developing a Hierarchical Structure
    3.2. Selecting Decision-Makers
    3.3. Determining the Linguistic Variables andFuzzy Conversion Scale
    3.4. Establishing Comparison Matrices
    3.5. Calculating the Consistency Index andConsistency Ratio of Comparison Matrix
    3.6. Constructing the Group Judgment Matrix
    3.7. Calculating the Local Weights of Criteria andSub-Criteria
    3.8. Calculating the Global Weights of the Sub-Criteria
4. The Hierarchy of TQM Success Factors
    4.1. Top Management Commitment (C1)
    4.2. Role of the Quality Department (C2)
    4.3. Training and Education (C3)
    4.4. Continuous Improvement (C4)
    4.5. Quality Policies (C5)
    4.6. Quality Data and Reporting (C6)
    4.7. Communication to Improve Quality (C7)
    4.8. Customer Satisfaction Orientation (C8)
5. Application of the Proposed Framework
6. Results and Discussions
7. Conclusions
References

• Tran Van TRANG(Faculty of Business Administration, Thuongmai University)
• Quang Hung DO(Faculty of Information Technology, University of Transport Technology) Corresponding Author.