• Journal of the Korean Data and Information Science Society
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• v.20 no.2
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• pp.329-338
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• 2009

The importance performance analysis is a simple and condensed analytic method for decision making based on the level of performance or satisfaction. Many researches already have witnessed usefulness of the importance performance analysis, but it also has some drawbacks from the statistical points of view. In this article, some additional techniques dealing the importance performance analysis are introduced and it is shown that these techniques would turn out to be very informative. The importance performance analysis uses the arithmetic average as the main statistic, but by the use of the median, the frequency and the cluster analysis it is shown that the importance performance analysis can be carried out with more crucial information. In addtion to that, it is demonstrated that the combination of the analytic hierarchy process and importance performance analysis could enable more reliable decision making.

• Journal of the Korea Institute of Building Construction
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• v.11 no.3
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• pp.292-300
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• 2011

The construction industry in Korea has seen significant improvements in quality management techniques, driven by the dramatic development of new technology through Manhattanization and enlargements, but compared with technical development, the level of building quality improvement is still lagging behind. In the meantime, as the interest in construction quality soars due to changes in user consciousness, the level of quality that is being demanded is rising. The government has reinforced quality systems by implementing responsible supervision requirements and granting overseas companies permission to enter the supervision business in Korea, and private sector companies also are attempting quality improvement through quality assurance approaches like the preliminary qualification screening system and ISO 9000 series. But currently, building constructions are done only according to the construction specifications of project owners, whose design, materials and construction methods are already decided, and do not leave any necessity or opportunity for technical developments for the quality improvement of contractors. Therefore, in this study, a work process and system improvement plan for payment regulations is proposed, with which contractors can secure quality voluntarily in the building construction phase.

• Journal of the Korea Institute of Building Construction
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• v.11 no.1
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• pp.45-50
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• 2011

Building construction projects have various risk factors, so accidents is easily occurred in construction field. Therefore, many studies have been carried out to find methods for reducing such accidents. However, most of these studies have been focused to engineering factors, such as working methods and safety guards and equipments. The purpose of this study is to select the key accident risk factors in building construction projects. For this study, we identified the accident risk factors, which include engineering, education, and enforcement factors, and quantitatively evaluated these factors using an analytic hierarchical process. Identifying the key accident risk factors will help to reduce accidents in building construction projects.

• Korean Journal of Construction Engineering and Management
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• v.17 no.3
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• pp.81-89
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• 2016

Under the circumstances where the profitability has become a more critical issue for general contractors, the objective of the study is to identify and discuss obstacles and their key characteristics in the construction budget estimating. Through the questionnaire survey and interviews with experienced estimators of general contractors, the study identified 18 obstacles by 6 groups. It discussed that although various obstacles exist, there are key obstacles to which general contractors should pay attention for the realistic construction budget estimating. In particular, improving subcontractors' estimating competency and incubating estimating experts are identified as the key issues to overcome obstacles in the construction budget estimating.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.41 no.11
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• pp.883-890
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• 2013

Aircraft combat survivability analysis is essential process for the development of combat aircraft. M&S methodology is the typical procedure for the aircraft combat survivability analysis, and the last step is the expensive Live Fire Test if it is necessary. This study introduced cost and time effective survivability analysis methodology based on the random variable weighted score algorithm in conceptual design phase. For this study, essential element and event analysis (E3A) is used to define the random variables and Monte-Carlo simulation is implemented to estimate weighted score and the final value of survivability.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.49 no.6
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• pp.546-551
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• 2004

The study was focused on setting priority for future core technologies in crops using Analytic Hierarchy Process (ARP). The technologies were derived by Delphi method. Evaluation criteria for the priority setting were decided as 'technology', 'market oriented', and 'public concerns' by council. The future core technologies were divided as four groups by importance and R&D level. Technologies in upper two groups were considered in the study. Group I had high importance and high R&D level. Group II had high importance and lower R&D level. Questionnaires were given to 8 specialists in crops. As the results, 'public concerns' was decided as the most important evaluation criterion. The most important technologies are 'developing of growing technology that has low inputs and production cost for environmental friendly agriculture' in group I, and 'developing of gene searching, characteristics transformation, and commercialization technologies for crops using bio-technology' in group II.

• Journal of Korean Society for Quality Management
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• v.42 no.3
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• pp.425-444
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• 2014

Purpose: This study aims to overcome the problem of private education market environment which is polarized into commercialized large private education institutions and small and medium sized private education institutions in a poor business environment, and develop systematic performance measurement model applicable for small and medium sized private education institutions. Methods: To develop the BSC which measures financial and non-financial indicator in a balanced manner and introduce the BSC into private education institutions that contain conflicting goals "EDUCATION" and "PROFIT". In particular, Utilizing the methodology of AHP, the priority of strategies and execution assignments are derived. Results: BSC model was developed and introduced by cooperating with executives of the private education institution. Moreover, the study permits to achieve the strategy, enterprise-wide vision and mission by deriving strategy map and applying it to the private education institution. To measure the performance of BSC model instruction, KPI corresponding to the strategic objectives of each perspective was derived. Conclusion: BSC model generally introduces to large-sized companies and public institutions. In this study, BSC model is developed by focusing on small and medium sized private institution. Furthermore, this study is more than simple model development, it makes a connection with achievement of strategic objectives, enterprise-wide vision and mission through strategy map and strategy execution method. Through the developed BSC model and strategy execution method, utilization plan in practice and customized model for private education institutions coexisting profit and non-profit objectives were developed, and academic implications were presented.

• The Journal of the Korea Contents Association
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• v.11 no.7
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• pp.345-353
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• 2011

This paper is an investigative research to improve customer satisfaction survey for resolving practical problems. It is natural phenomenon that, as the level of customer satisfaction index increases, the ratio of satisfied customers increases too. However, the effectiveness of practical application of customer satisfaction survey for improvement of customer satisfaction decreases due to its structural limitation on its data analysis system. In order to cope with these problems, it is necessary to develop the new method to identify the strategy meanings and find the dissatisfied factors of satisfied customers using the satisfied customers reclassification. This study proposes the satisfied customer reclassification method based on attribute complex scores. The excremental results show that the it was expected to present more improved results than the number-producing oriented one dimensional model. This study is expected to play the role as the groundwork for the revitalization of customer satisfaction survey as well as improving customer satisfaction management.

• Journal of Navigation and Port Research
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• v.30 no.1 s.107
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• pp.61-66
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• 2006

In order to promote e-business in port-logistics area, many studies have been conducted since then However, despite those studies related to e-business in this area, prominent achievements have not been presented, and moreover, research in academic side has been very rare, comparing to that cf practical side. In this paper, we focus on factors affecting adoption of e-business in the field of port-logistics industry. The purpose of this study is to find the factors which affect adoption of e-business in port logistics industry, and establish its structure, based on a cognitive modeling. To achieve the aim of this research, we framed a cognitive map with empirical data collected from port-logistics firms. And from the results of analysis, some critical points for successful adoption cf e-business in port-logistics industry were suggested.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.2
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• pp.613-624
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• 2013

The purpose of this study is to identify the priorities with respect to the characteristics of tourism resources development plan between the South and the North Korea. Through a preliminary investigation 287 lists of questions were distributed from May 14, 2012 to December 5, 2012 and from among them 252 lists were used. Expert Choice 11.5 was used to do pairwise comparisons and priorities assessment. Based upon the results of empirical analysis, the priority order sets of the domain of tourism resources development plan should be related to the development contents, the development objects, the development patterns, and the development subjects in the South Korea. Those should be related to the development subjects, the development objects, the development contents, and the development patterns in the North Korea.