• Title/Summary/Keyword: DELPHI METHOD

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A Delphi Study on Software Project Risks (소프트웨어 개발 프로젝트의 위험요인 도출에 대한 델파이 연구)

  • Chung Kyung-Soo;Kang Myeong-Hui;Kim Yong
    • The Journal of Information Systems
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    • v.13 no.1
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    • pp.1-20
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    • 2004
  • Most of the software development projects bear risks that need analysis and management. Risk management plays a critical role for the success of software project management. In this study, we have used delphi method to delineate critical risk factors. The study pulls out 20 project risk factors from 21 project managers. It is certainly clear that certain features are more risky than others. Our study shows that unrealistic cost estimation and changes in scope and objective are more risky than other features.

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Development of Low Carbon Hydrogen Production Technology Evaluation Model Using Delphi-AHP Method (Delphi-AHP 방법을 이용한 저탄소수소 생산 기술 가치평가 모델 개발)

  • HO SEOK WHANG;UISIK KIM;YOUNGSHIN JANG;JUNGHWAN KIM;KWANG JUN KIM
    • Journal of Hydrogen and New Energy
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    • v.34 no.2
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    • pp.113-121
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    • 2023
  • Recently, low hydrogen carbon production technology is drawing interest due to lower production costs. Although the pace of research in this field has been accelerating, there is no well-established criteria for evaluation. The most of current evaluation methods needs information related to technology. However the technology is not enough to provide effective evaluation criteria because the technology is not fully developed. In this study, we propose an integrated Delphi-analytic hierarchy process (AHP) method and low carbon hydrogen production technology evaluation model. Experts opinion is used to provide evaluation criteria for the technology. In this study, integrated Delphi-AHP method are utilized for determining factors and calculating their numerical importance based on experts opinion. Then, sensitivity analysis is performed to verify the robustness of the analysis and scenarios of potential changes. As many as 11 factors are identified by Delphi method. Then, numerical importance of the factors are calculated by AHP. Sensitivity analysis is performed. It shows that intellectual property right (IPR) is always more important than other factors. This study proposes the numerical standard for the low carbon hydrogen production technology evaluation. The proposed model can be used for technology evaluation or commercialization.

Development of Educational Content for Nurses to Prevent Safety Accidents of Hospitalized Children: Delphi Approach

  • Lee, Yun Sil;Oh, Won-Oak
    • Child Health Nursing Research
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    • v.25 no.1
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    • pp.74-84
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    • 2019
  • Purpose: The purpose of this study was to develop content for safety education to prevent hospital safety accidents among hospitalized children and to investigate the status of safety education performed by nurses. Methods: First, the Delphi method was used, with 18 experts, to develop educational contents for preventing safety accidents. Second, an exploratory survey was performed of the actual status of safety education for preventing safety accidents among hospitalized children using a questionnaire developed based on the Delphi method. The participants of this study were 159 nurses with at least 6 months of work experience. Results: The educational content developed through the Delphi method for preventing safety accidents among hospitalized children contained seven domains (falls, injury, electric shocks/burns, suffocation/aspiration, poisoning/abuse, kidnapping, medical devices) with 44 topics. The item mean of nurses'perceptions of the importance of child safety education was 4.18, and the actual performance score was 3.72, which was a statistically significant difference (t=11.58, p<.001). Conclusion: These seven comprehensive domains of accident prevention education for hospitalized children are expected to be useful for interventions to support the safety of hospitalized children.

A Study for the Establishment of the Diagnostic Definition of Sanhupung (U32.7) using the Delphi Method (산후풍의 진단적 정의 확립을 위한 전문가 델파이 조사 연구)

  • Oh, Su-Kyoung;Noh, Eun-Ji;Choi, Su-Ji;Kim, Dong-Il
    • The Journal of Korean Obstetrics and Gynecology
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    • v.34 no.2
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    • pp.16-30
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    • 2021
  • Objectives: The aim of this study was to establish a clear diagnostic definition of Sanhupung using the Delphi method. Methods: This study used the Delphi technique. A panel consisting of 21 experts of Korean medicine, particularly in of gynecologic medicine, participated in the Delphi examination that included answering the 4th round survey. The Delphi examination was carried out through evaluating and correcting the questionnaire by e-mail. Results: Through the Delphi survey, we have reached on an agreement regarding the basic concepts, time, cause, essential symptoms, and accessory symptoms of Sanhupung. They are as follows: 1) Sanhupung is a culture bound syndrome reflecting Korea's cultural specificity. 2) Sanhupung can be diagnosed even after the miscarriage. 3) For the diagnosis of Sanhupung, the main cause of symptoms should not be classified as other disease. 4) Sanhupung can be diagnosed based on essential symptoms and accessory symptoms. 5) Essential symptoms include local symptoms such as joint pain at specific areas, partial sensory impairment and general symptoms including pain of all the joints, whole body sensory impairment, increased sweating, feeling of wind coming into the body, worsened symptoms with the cold, intolerance to cold, and pain of all the muscles. Conclusions: The basic concepts and diagnostic definition of Sanhupung were suggested based on the Delphi survey among experts in the field. Further research is necessary to improve reliability and validity of diagnostic definition of Sanhupung in clinical trials.

Development of Drought Vulnerability Index Using Delphi Method Considering Climate Change and Trend Analysis in Nakdong River Basin (낙동강 유역의 기후변화를 고려한 경향성 분석과 Delphi 기법을 이용한 가뭄 취약성 지수 개발)

  • Yang, Jeong-Seok;Kim, Il-Hwan
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.33 no.6
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    • pp.2245-2254
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    • 2013
  • A vulnerability index was developed for drought by using trend analysis and Delphi method. Twelve indicators were selected based on three groups, i.e., hydrological, meteorological, and humanistic groups. Data were collected from Nakdong river watershed. Three trend tests, i.e., Mann-Kendall, Hotelling-Pabst, and Sen's trend tests, were performed for standardizing the indicators and Delphi method was used to estimate the weights for individual indicators. The drought vulnerability index was calculated for seven regions in the Nakdong watershed and Hapcheon turned out to be the most vulnerable region among the study regions. The drought vulnerability index developed in this study can be applied to other regions in Korea for establishing national water resources management plan.

A Fundamental Study on Developing the Enrichment Curriculum for Gifted Children in Informatics Education Using Delphi Method (Delphi 기법을 적용한 심화형 정보 영재교육과정 개발의 기초연구)

  • Park, Jeong-Sun;Kim, Yung-Sik
    • The Journal of Korean Association of Computer Education
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    • v.13 no.4
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    • pp.13-26
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    • 2010
  • The purpose of this study is to develop the enrichment curriculum connected to a Revised Version of 7th National Informatics Curriculum in Middle School for gifted students in IT education. This study uses a Delphi Method to develop a curriculum which is comprised of educational objectives, educational contents, teaching-learning method and educational evaluation. This study carried out a three-round delphi survey in 'The problem-solving method and its procedure' field from grade 1 to grade 3. In this study, first, the responses of the experts about educational objectives, educational contents, teaching-learning method and educational evaluation of each grade were analyzed. Second, organized items were designed. Finally, important items were selected by statistics.

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Developing Evaluation Indicators for Selecting Suppliers based on IoT Business Model in Servitization Using Delphi Method (델파이 기법을 사용한 사물인터넷 비즈니스 모델 기반의 서비타이제이션 협력업체 선정 평가지표 개발)

  • Yang, Jae-Yong;Lee, Sang-Ryul
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.42 no.1
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    • pp.21-32
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    • 2019
  • The flow of the $4^{th}$ Industrial Revolution calls for the innovation of the traditional business models of the manufacturers. Servitization is a corporate strategy to respond to changes in the business environment. These days, the value that the market demands can be created on the basis of the product-service integration. Thus the manufacturers must pursue the fundamental innovation of the current strategy and business models. It is necessary to create common values with customers through providing product-service integrated offerings beyond the development, production, and delivery. The purpose of this study is to develop the evaluation indicators for selecting suppliers when the manufacturer who offers the value of product-service integration needs to obtain the resources from outside. The case company in this study is the manufacture firm conducting the retail IoT business as a new business. The Delphi method is used to develop the evaluation indicators for selecting suppliers. This study suggests the academic implications providing the perspective of Servitizaiton by using Delphi method, and the practical implications applying the creating value method of Servitization by collecting the opinions from both value providers and value consumers in the process of developing the evaluation indicators.

A Comparative Study on the International Technology Levels and R&D Cooperation Capabilities of Mechanical Engineering and Other Technologies by Delphi Method (Delphi기법에 의한 기계공학기술과 다른 기술분야의 국제적 기술수준과 국제기술협력 가능성에 대한 비교연구)

  • Kwon, Youngjoo
    • Journal of the Korean Society for Precision Engineering
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    • v.14 no.6
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    • pp.74-82
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    • 1997
  • We provide a set of information on technologies to draw meaningful action plans for the internationalization on National R&D activities. In this study, we employed a modiffed Delphi method to evaluate levels of our technological capabilities and developed countries as well. We investigated technology acquis- tion methodologies, technology characteristics and various aspects of international cooperation in terms of technology. Then, we analyzed final responses of participants (i.e., the third round results of Delphe method) to see the correlation among various factors in developing technologies through international R&D cooperation. The technology classification used in this research was developed by STEPI (Science and Technology Policy Institute). In conclusion, levels of our technologies were investigated to be between the stage of imi- tating/absorbing advanced thechnologies and the stage of digesting acquired technologies. Especially, com- paring with other technologies, mechanical engineering was evaluated to be almost near the stage of digesting acquired technology(the middle level stage of technology). Our overal technological capabilities were evaluated to be 40 .approx. 60% of top level countries.

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A Study on Survey for Technology Forecasting using Delphi in Animal Science and Veterinary Medicine (축산 . 수의분야의 델파이 기술예측조사에 관한 연구)

  • Cho, K.T.;Paik, I.K.;Cho, Y.W.;Lee, J.I.
    • Journal of Animal Science and Technology
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    • v.46 no.3
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    • pp.479-494
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    • 2004
  • The study was designed to forecast and derive future core technologies using Delphi method for Korean livestock industry. The technologies will make livestock industJy a core and strategic industry that has high value-added sector in 21 century. Questions were given to specialists of each technology in order to survey importance, realization time. level of R&D in Korea and foremost countries, leading group of R&D, effective policy, etc. for each technology. The target of the survey for Delphi is confined to specialists in the area of Animal Science and Veterinary Medicine. 90 core technologies were derived and 62 specialists answered the questionnaire.

A Study on Survey for Technology Forecasting using Delphi in Biosystems Engineering (농업기계화분야의 델파이 기술예측조사에 관한 연구)

  • 이종인;조근태;장동일;이규천;조영우
    • Journal of Biosystems Engineering
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    • v.29 no.2
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    • pp.175-186
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    • 2004
  • The study was designed to forecast and derive future core technologies using Delphi method in Korea agriculture. The technologies will make agriculture for core and strategic industry that has high value-added in 21 century. Questions were given to specialists by each technology in order to survey importance, realization time, level of R&D in Korea and foremost country, leading group of R&D, effective policy, etc. for each technology. The target of the survey for Delphi is confined specialists in the area of Bioystems Engineering. 55 core technologies were derived and 31 specialists answered the survey.