• Title/Summary/Keyword: DEMATEL

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Quantitative Analysis for Problems and Improvement Directions of the Comprehensive Rural Village Development Projects using DEMATEL and Contents Analysis (DEMATEL 및 내용분석기법을 활용한 농촌마을종합개발사업 문제점 및 개선방안의 정량적 분석)

  • Bae, Seung-Jong
    • Journal of Korean Society of Rural Planning
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    • v.16 no.3
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    • pp.173-184
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    • 2010
  • The objectives of this study are to quantitatively analyze problems and improvement directions of the comprehensive rural village development projects through DEMATEL and contents analysis. Contents analysis was conducted for 15 existing researches and 28 problems were deducted at the stage of the comprehensive rural village development projects. The Decision Making Trial and Evaluation Laboratory(DEMATEL), a mathematical computation method, was utilized as an objective method to handle the inner dependences within a set of problems. The results of this research are summarized as follows. First, insufficient education and publicity of project was the most considerable cause problem. Second, lack of participation, will, and ability of residents was the most considerable effect problem. Finally, several improvements of the comprehensive rural village development projects were deducted by cause and effect relationship of problems.

Structural Analysis of Labor Productivity Influence Factors in Construction Industry Using Fuzzy DEMATEL Method (Fuzzy DEMATEL 방법을 활용한 건설산업 노동생산성 영향요인 구조분석)

  • Lee, Chanwoo;Cho, Hunhee
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2023.05a
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    • pp.353-354
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    • 2023
  • Improving productivity in industries is a very critical issue, and improving labor productivity is especially important in construction industry, which is a labor-intensive industry. However, researches on labor productivity in construction industry are insufficient, and most of previous studies have limitations in terms of specificity and logic. In this study, fuzzy DEMATEL method was used to structural analyze of influence factors for labor productivity in construction industry based on previous researches and expert survey. The result of this study contributes to deriving priorities for improving labor productivity.

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An Analysis of the Causal Relations of Factors Influencing Construction Accidents Using DEMATEL Method (DEMATEL 기법을 적용한 건설재해 영향요인 구조 분석)

  • Kim, Dongwook;Jung, Yunho;Hong, Minki;Jang, Hyounseung
    • Korean Journal of Construction Engineering and Management
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    • v.21 no.1
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    • pp.87-98
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    • 2020
  • As the construction industry accounts for 28.5% of industrial accidents in Korea and 29.6% of industrial accident deaths in 2017, it is necessary to search for a priority disaster reduction scheme for the construction industry in order to reduce the industrial accident rate. Therefore, this research suggested improvement direction for construction accidents reduction based on factors affecting construction accidents occurring in the construction site by DEMATEL analysis. As a result of the analysis, the 4M factors with the highest Prominence and Relation is 'Management', and the detailed analysis of the 4M factors were Personal characteristics of workers, Defects such as machinery and equipment, Inadequate inspection of machinery and equipment, Insufficient safety management plan, Inappropriate work orders from supervisors and field managers. The analysis results of this research can be used as a basic data for establishing direction of reduction and improvement of construction accidents.

Derivation of Key Evaluation Indicators for Improving the Quality of Daycare Centers: Using the DEMATEL Technique (어린이집 품질 제고를 위한 핵심 평가지표 도출: DEMATEL 기법을 이용하여)

  • Park, Youngsun
    • Journal of Korean Society for Quality Management
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    • v.47 no.4
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    • pp.767-781
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    • 2019
  • Purpose: The purpose of this study is to derive key evaluation indicators to improve the quality of daycare centers by identifying the relationships among the 18 evaluation indicators of the daycare evaluation system using the DEMATEL technique. Methods: In this study, the questionnaires are completed by 17 daycare center directors who have received accreditation of daycare center. They are requested to consider the level of direct influence between two evaluation indicators. A DEMATEL analysis was conducted based on the survey results. Results: The result of the study shows that the most important indicators of daycare center quality are directors leadership, institutional operations and professionalism of staff. Among evaluation areas, educational childcare curriculum & interactions is affected by all areas, and staff area affect all areas. Conclusion: The evaluation areas and indicators of the daycare center are judged to be well-balanced. It is expected that the findings of the key evaluation indicators that should be prioritized among the evaluation indicators will be helpful to those preparing for the evaluation of the daycare center.

Development of Evaluation Index for Foreign Weapon System Purchase using DEMATEL and ANP (DEMATEL과 ANP를 이용한 해외구매 무기체계의 평가지표 개발)

  • Cho, Hyun-Ki;Kim, Woo-Je
    • Journal of the Korean Operations Research and Management Science Society
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    • v.37 no.2
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    • pp.73-88
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    • 2012
  • Even though the final source selection of foreign weapon system purchase project in defense area is the most important phase, the standard evaluation index has not been developed. This paper provides an appropriate evaluation index using DEMATEL and ANP methods. First, the all possible evaluation criteria applied to the relevant previous literatures in domestic and overseas researches are derived and classified into groups. Second, DEMATEL method is used to determine the network structure representing the relations of cause and effect between groups and their sub-criteria. If isolated factors, not connected with other factors, are existed in the network structure, all factors except for the isolated ones are grouped as one large factor so that the independency between those ones is maintained. The weights of criteria are determined using AHP method if the criteria are independent relation and ANP method if the criteria are networked. The weights of higher and lower level criteria are then integrated and distributed as a point with respect to the decision making purpose. The developed evaluation index can be used as a standard one in various foreign weapon system purchase projects in defense area.

Structural Analysis of Earthwork Productivity Influence Factors Using Fuzzy DEMATEL Method (Fuzzy DEMATEL 방법을 활용한 토공사 생산성 영향요인 구조분석)

  • Lee, Chanwoo;Kim, Hyeonmin;Kim, Hyungjun;Cho, Hunhee
    • Journal of the Korea Institute of Building Construction
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    • v.23 no.6
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    • pp.751-760
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    • 2023
  • Enhancing productivity in earthwork projects is crucial, significantly affecting both time and cost efficiencies. However, existing research in this domain predominantly relies on qualitative data and methodologies, which may not suffice given its critical significance. This study employed the fuzzy DEMATEL method to conduct a structural analysis of variables affecting productivity in construction projects. The findings reveal that plan changes possess the most substantial overall influence on earthwork productivity, with a comprehensive strength rating of 4.58. Additionally, it was observed that precipitation data exerted the most pronounced positive impact, with a rating of 0.48. These insights are anticipated to aid in identifying and prioritizing areas for productivity enhancement in construction projects.

Extraction of Cause Factors to Enhance the Competition of Ship Management Industry Considering Ship's Lifecycle based an Intuitionistic Fuzzy DEMATEL&ISM (직관적퍼지 DEMATEL&ISM법 기반 선박의 전주기를 고려한 선박관리산업의 경쟁력 강화 원인요인 도출)

  • Jang, Woon-Jae
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.27 no.2
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    • pp.228-237
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    • 2021
  • In those day, the Busan local government had instituted a rule to support and enhance competition as well as improve respect for the ship management industry. This study aims to extract the cause factors to enhance such competition using intuitionistic decision making trial and evaluation laboratory (DEMATEL) and interpretive structural modeling (ISM) methods. First, eight factors were extracted from the specifications in the Ship Management Industry Development Act. Second, the intuitionistic fuzzy number was converted to a crisp number using the standard fuzzy number. Third, the influence relationship was analyzed using DEMATEL, and the priority ranks for the factors are determined using ISM. From the results of the impact relationship analysis, the three main cause factors were determined as improvement of technical ship management capability, improvement of expertise of manpower for onshore management, and improvement of the quality of the Korean seafarer. The priorities under the ISM method, in descending order, were as follows: improvement of the quality of Korean seafarers, improvement of professionalism among the manpower for shore management, improvement of technical ship management capability, improvement of commercial ship management capability, establishment of a comprehensive information system, improvement of the working conditions and employment environment for seafarers, financial support such as overseas orders, and strengthening the availability of foreign seafarers. Therefore, it is necessary to prioritize policy promotion based on these factors, especially the top three, as these have the highest impact.

Key Success Factors of Blockchain Platform for Micro-enterprises

  • YANG, Mei-Hsiang;LEE, Tzong-Ru;CHANG, Tin-Chang
    • The Journal of Asian Finance, Economics and Business
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    • v.6 no.3
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    • pp.283-293
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    • 2019
  • The purposes of the study are threefold: (1) develop key successful factors of blockchain platform for micro-enterprises based on Balanced Scorecard (BSC), (2) find out the correlation between the key successful factors of blockchain platform for micro-enterprises, and (3) understand the perception of micro-enterprise blockchain and the difference between theoretical guidance and practical application. This study combines Interpretative Structural Modeling Method, (ISM) and Decision-Making Trial and Evaluation Laboratory (DEMATEL) to analyze the causal relationships and hierarchical structures of the 12 key successful factors of blockchain platform for micro-enterprises and understand the correlation between factors. The 12 key successful factors developed based on the four perspectives of the Balanced Scorecard, and the questionnaire designs based on the concept of DEMATEL, and then analyzed data by DEMATEL and ISM methods to understand the correlation between key factors. The research results show that the key successful factors of blockchain platform for micro-enterprises include "brand equity", "security and anti-counterfeiting", "sales growth", "transparency and clear", "trust", "consensus mechanism", "traceability", "consistency", "tracking", "innovation management", "international", "organizational adaptation", in which consumer "trust" plays an important role. Micro-enterprises can use blockchain to expand the market, provide customers with better service quality, and bring sales growth to micro-enterprises.

Modelling the factors affecting Quality of Life among Indian police officers: a novel ISM and DEMATEL approach

  • Vineet Jain;Hanif Qureshi
    • Safety and Health at Work
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    • v.13 no.4
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    • pp.456-468
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    • 2022
  • Background: This study examines quality of life (QOL) of a sample of police officers in India. The concept of QOL includes well-being, social obligations, relationships of a person, and his association with environment. The study examines the factors on which QOL of police officers depend and their relationships with each other. The issues linked with QOL are important because they directly affect the individual's ability to maintain a healthy lifestyle and affect organizational performance in the long run. This study explores relevant factors that have an impact on the QOL of the employees of police department in India. Method: In this paper, literatures review, ISM, MICMAC, and DEMATEL methodology have established eleven factors that impact the QOL of police officers in India. Mutual relations between factors have been established using the ISM approach to develop a model to represent these relationships. DEMATEL methodologies were used to analyze these factors. Results: Results indicate that "fair compensation, work overload, workplace safety, and job stress" are the top-level factors that affect QOL of police officers. Conclusion: The identification of factors and their mutual relationships that affect QOL are important for police officers and have to be dealt with according to their order of importance. The research model developed in this study shows how the factors of police officers' QOL are interrelated and presents the interrelationships among these factors. A comprehensive model depicting the relationships among these factors has been established, so that the QOL of police officers can be improved.