• Title/Summary/Keyword: 자료포락 분석

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Evaluation of Managerial Efficiency in Occupational Health Service Organizations Using the Data Envelopment Analysis Method (산업보건서비스기관의 운영 효율성 분석 - 자료포락분석(DEA)기법을 이용하여 -)

  • Kim, Hee-Jeong;Shin, Eui-Chul;Kim, Jin-Hyun
    • Korean Journal of Occupational Health Nursing
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    • v.11 no.2
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    • pp.108-120
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    • 2002
  • This study analyzed the managerial efficiency of 11 organizations, the branch centers of a occupational health service organization in Korea, using the Data Envelopment Analysis (DEA) method. The DEA is a good method for evaluating health services since it can handle multiple inputs and outputs simultaneously, and also identify the sources and amount of inefficiency. The author approached this study using two efficient models: the monetary value model and the real value model. The DEA method based on the monetary value model included cost factors, while the real value model excluded cost factors. The input variables used were manpower of physicians, medical technicians, nurses, industrial hygienists and administrators; labor, maintenance, and material expenses. The output variables used were the number of medical examinations, workplace evaluations, group health management services and income from each service. The major results were as follows: First, in the monetary value model, 6 out of 11 organizations (54.6%) showed an efficiency score of 1.0, which means that they have been operating in very efficient ways. However, 5 organizations (46.4%) showed themselves to be relatively inefficient. Second, in the real value model, 7 out of 11 organizations (63.4%) showed an efficiency score of 1.0, which means they have been operating efficiently, while 4 organizations (46.4%) showed themselves to be relatively inefficient. Third, the reliability of DEA method were analyzed by comparing the results of the monetary value model and real value model. The results of 8 out of 11 organizations were same in terms of being efficient or not. Thus, the DEA could be a valid application method for occupational health service organizations. Fourth, the organizations that displayed common inefficiency in both the monetary value model and in the real value model 3, 9, and 10, were also considered to be managed inefficiency from expertise opinion. In summary, this study evaluated the efficiency of occupational health service organizations applying the DEA method with different variables, and found that the results of analysis could be valid in terms of both modeling and expert sense. In the future, the DEA method will be used as a useful tool to identify and evaluate the efficiency of occupational health service organizations through more applications and refinements.

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A Study for Measuring Service Quality in Incheon International Airport Focusing on the Passenger Terminal (인천국제공항 여객터미널 서비스 품질 측정에 관한 연구)

  • Hong, Seok-Jin;Lee, Jae-Hwan
    • Journal of Korean Society of Transportation
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    • v.25 no.1 s.94
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    • pp.81-91
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    • 2007
  • Incheon International Airport (IIAC) has been named "best airport worldwide" according to the AETRA Passenger survey Program that was jointly administered by Airports Council International (ACI) and the International Air Transport Association (IATA) in 2005. This paper identifies eight dimensions underlying the overall service qualify in passenger terminals. These eight elements were found from literature reviews through relevant documents. The research explains the linkage between the overall satisfaction with IIAC and five services that influence that satisfaction. The five services are the following: service quality of passenger terminals, commercial facility services, easy access by transportation, service quality of the airlines, and contributions to the community by IIAC. The data envelopment analysis (DEA) designed by Cook and Kress (CK Model) was used to maximize the efficiency of commercial facility services, easy access by transportation, service qualify of the airlines, and contributions to the community by IIAC because the model best provided practical plans for a more competitive airport. This paper has three significant results. First, it includes research of passenger terminal-oriented service quality. Second, the author researches service qualify focusing on a three-cornered relation among passengers, airline employees, and IIAC. Third, the paper contains research of service quality focusing on IIAC's employees.

A Study on the Efficiency Analysis of Specialty Construction Industry Type (전문건설업 유형별 효율성 분석 연구)

  • Kim, Ye-Jung;Yoo, Dong-Young;Park, Sun-Gu
    • The Journal of the Korea Contents Association
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    • v.19 no.5
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    • pp.64-73
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    • 2019
  • This study analyzed the efficiency by using the DEA model to evaluate the competitiveness of specialty construction firms. The target of the analysis is 300 firms with continuous data from 2010 to 2017 as listed and externally listed firms. Significant analysis results are as follows. First, the efficiency of specialty construction firms is lower than that of general construction industry. Second, efficiency by type was highest in facilities construction and dismantling work. This shows that the relevant industries such as reinforced concrete works and scaffolding and demolition work are relatively efficient in specialty construction industry. Third, the efficiency of specialty construction industry is affected by economic fluctuations. When the construction industry is in the expansion phase, the efficiency value is high and the efficiency value is low in the down phase. Finally, in the scale profitability analysis, specialty construction industry was most analyzed by DRS. This means that it is effective to scale down for the efficiency of the firm.

A Study on Measuring the Efficiency of the Army Supply-Transportation Battalions (육군 보급수송대대 효율성 측정에 관한 연구)

  • Seo, Me-Young;Song, Yong-Il
    • Journal of the military operations research society of Korea
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    • v.36 no.2
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    • pp.85-106
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    • 2010
  • Recently, government is endeavoring for Defense Ministry unit's efficiency improvement according as requires low cost, high effectiveness continuously about public sector. But, by real condition that measuring analysis about logistical corps'(LOG) efficient operation is not, this study was done to present method to estimate efficient management availability of logistical corps(LOG). Presents choosing variable that is suitable in Quartermaster Corps' efficiency estimation for this through existing virtue study investigation, and takes advantage of DEA (Data Envelopment Analysis) technique that divert in public sector efficiency measurement, I wish to present plan for inefficient organization's efficiency improvement after evaluate efficiency to Quartermaster Corps.

Analysis of Efficiencies of Korea's Domestic Airports With Radial and Non-radial Approaches (방사적 및 비방사적 접근법을 이용한 국내공항의 효율성 분석)

  • Jeon, Young In;Min, Kyung Chang;Ha, Hun-Koo
    • Journal of Korean Society of Transportation
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    • v.31 no.2
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    • pp.11-19
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    • 2013
  • This study analyzed relative efficiencies of fourteen airports in Korea with radial and non-radial approaches such as DEA(Data Envelopment Analysis) and SBM(Slack Based Measure) from 2004 to 2011. To suggest an improvement scheme for these airports, we analyzed slack airports and compared then with respective reference airports. To measure efficiency, we used the length of runway, the number of employees, and the size of terminal as input factors, and the number of passengers, the amount of cargo, and the number of flights as output factors. The analysis results showed that efficiencies of most airports had been decreasing and that the gap between efficient airports and inefficient airports was widening. Additionally, most airports had much slacks in its terminal size. It meant that they had been operated with a size not proportionate to their demands and that it is a major cause of inefficiency.

Operational Efficiency Analysis Using DEA Approach for the Major Airports in Asia (DEA 분석에 의한 아시아 공항 운영 효율성 연구)

  • Lee, Yeong-Heok;Kim, Eun-Jung;Kim, Do-Hyun
    • Journal of Korean Society of Transportation
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    • v.22 no.4 s.75
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    • pp.7-18
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    • 2004
  • There have been various research in analyzing airport productivity such as measuring total factor productivity using the models of translog cost function. DEA(Data Envelopment Analysis) model is very useful in measuring productivity with linear programming when the output is not clearly identified and measured quantitatively in such complex facilities as airport. This study is to measure airport productivity using DEA approach for Northeast Asia. Seven international airports were analyzed including Incheon International Airport in Korea, Cheklapkok Airport in Hongkong, Narita Airport in Japan, and Changi Airport in Singapore. With the productivity measured, we can identify one of the important aspects of comparative advantage in hub competition in Asia.

Analysis of Renewable Energy R&D Efficiency (신재생에너지 원별 연구개발 효율성 분석)

  • Cho, Inkyung;Kim, Kyunghee
    • Journal of Energy Engineering
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    • v.24 no.4
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    • pp.97-104
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    • 2015
  • The performance in scientific contribution of renewable energy R&D has been overlooked, as it is shown in terms of industrial aspect. This paper analyzed the R&D efficiency of scientific aspects of each renewable energy resource in 2008-2012. Total R&D fund and the number of supported projects are selected as input variables, and the number of patents and papers as output variables to analyze the direct efficiency using DEA method. Through the analysis, it determines the efficiency of each energy resource R&D, and investigated the causes of inefficiency. This study has meaning to include entire renewable energy sources for the analysis, and is expected to serve as an important reference in policy making.

A Data Envelopment Analysis Model for Evaluation of Efficiency of Deep-Sea Fishing Industry (원양어업의 효율성 평가를 위한 자료포락 분석 모형)

  • Kim, Jae-Hee;Choi, Kang-Deuk;Kim, Soo-Kwan
    • The Journal of Fisheries Business Administration
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    • v.39 no.3
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    • pp.49-65
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    • 2008
  • In Korea, deep-sea fishing industry is faced with pressure of being thrown out of business, because of the upcoming unfavorable business conditions such as the fishing regulation of coastal countries, Korea-US Free Trade Agreement(KORUS FTA), and the other socio-economic changes. Hence, we present an evaluation of future business competitive for the deep-sea fishing industry so that the government can develop a concession plan for the deep-sea fishing industry by utilizing the results of this study. In efficiency analysis of deep-sea fishing industry, the decision maker may have two problems: (1) how to deal with multiple inputs and outputs of deep-sea fishing industry and (2) how to assign the weights on different inputs and outputs, In this paper, we proposed to use Data Envelopment Analysis (DEA) to estimate efficiency of deep-sea fishing industry with multiple inputs and outputs. In the DEA, The direct impact of KORUS FTA, fishing regulation of coastal countries, fishing charges, and competitive fishing conditions were used as input parameters while the profitability and secured fishing quarters, as outputs. The results of DEA-BCC model indicate that 6 out of 12 DUMs have better efficiency under variable return to scale assumption.

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Efficiency Comparison and Performance Targets for Academic Departments in the Local Private College Using DEA (자료포락 분석을 이용한 지방 사립 전문대학교 학과의 효율성 비교 및 성과 달성 목표수준 정의)

  • Bae, Jae-Ho
    • Journal of Korean Institute of Industrial Engineers
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    • v.39 no.4
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    • pp.298-312
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    • 2013
  • This paper compares efficiency results and performance targets for academic departments in a local private college using DEA (Data Envelopment Analysis). Because of an aging society, a smaller school-age population entering colleges, and enhanced accreditation standards by the government, colleges and universities are not recruiting and retaining sufficient students and therefore are struggling for survival. In contrast to popular four-year undergraduate universities concentrated in Seoul and its satellite cities, retaining students is critical for the survival of local private colleges in poor or remote regions. Therefore, it is very important to identify the factors involved in the retention of students in the various departments of a college. However, given the different characteristics of the departments, it is difficult to identify one unique or robust set of standards to evaluate their performance. The purpose of this paper is to maximize student retention capabilities by ensuring that additional resources are assigned to efficient DMUs, while, inefficient DMUs are given benchmarked targets. Based on previous studies and college accreditation standards, this paper presents indices to be used in evaluating the efficiency of academic departments in a college. In evaluating relative efficiency, this paper uses the output-oriented BCC model. To define target levels to be achieved for efficient DMU, a multi-stage DEA procedure is used.

Priority Analysis for Software Functions Using Social Network Analysis and DEA(Data Envelopment Analysis) (사회연결망 분석과 자료포락분석 기법을 이용한 소프트웨어 함수 우선순위 분석 연구)

  • Huh, Sang Moo;Kim, Woo Je
    • Journal of Information Technology Services
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    • v.17 no.3
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    • pp.171-189
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    • 2018
  • To remove software defects and improve performance of software, many developers perform code inspections and use static analysis tools. A code inspection is an activity that is performed manually to detect software defects in the developed source. However, there is no clear criterion which source codes are inspected. A static analysis tool can automatically detect software defects by analyzing the source codes without running the source codes. However, it has disadvantage that analyzes only the codes in the functions without analyzing the relations among source functions. The functions in the source codes are interconnected and formed a social network. Functions that occupy critical locations in a network can be important enough to affect the overall quality. Whereas, a static analysis tool merely suggests which functions were called several times. In this study, the core functions will be elicited by using social network analysis and DEA (Data Envelopment Analysis) for CUBRID open database sources. In addition, we will suggest clear criteria for selecting the target sources for code inspection and will suggest ways to find core functions to minimize defects and improve performance.