• The Journal of the Korea Contents Association
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• v.14 no.5
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• pp.498-511
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• 2014

This study was designed to investigate the perception of the competencies of using Importance-Performance Analysis (IPA). The subjects of the study were 318 clients and 118 consultants. Descriptive statistics, paired t-tests, and Importance-Performance Analysis (IPA) were conducted based on perception levels of clients and consultants to increase understanding of current situations and trends. Findings are expected to assist in planning. Regarding the perception of clients, Quadrant 2 (Concentrate Here) included consulting supervision expertise and content expertise, and Quadrant 4 (Possible Overkill) included skill expertise. Regarding the perception of consultants, Quadrant 1 (Keep Up the Good Work) included skill expertise; Quadrant 2 (Concentrate Here) included content expertise; and Quadrant 3 (Low Priority) included consulting supervision expertise. Results revealed that clients had no responses for Quadrant 1, but they offered 10 items associated with Quadrant 2, one item for Quadrant 3, and four items for Quadrant 4. Consultants responded with five items for Quadrant 1, three items for Quadrant 2, three items for Quadrant 3, and four items for Quadrant 4.

• Proceedings of the Korean Society of Medical Physics Conference
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• 2003.09a
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• pp.80-80
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• 2003

디지털 의료영상 획득기술과 컴퓨터 및 네트워크 기술의 발달로 현재 각 병원에서는 PACS(Picture Archiving and Communication System)를 설치하여 필름을 사용하지 않고 진단과 진료를 하는 병원이 증가하고 있으며, 이에 따라 기존 필름상태의 의료영상은 필름디지타이저로 디지털 영상화한 후 모니터를 통하여 판독과 진료에 이용하고 있다. 본 연구에서는 현재 세브란스병원에서 사용되고 있는 CCD 방식 필름디지타이저와 레이저 스캐너방식 필름디지타이저의 픽셀값 균일도에 대해 중점적으로 비교, 분석하고자 한다. 픽셀값 균일도 측정을 위해 필름프린터를 이용하여 균일한 광학밀도를 가진 필름을 출력하였다. 그 테스트 필름은 각 사분면에 각기 다른 광학밀도를 가지고 있었으며, 그 광학밀도 값은 각각 0.19, 0.71, 1.41, 그리고 3.10 이었다. 제작된 필름은 레이저 (Model 2905, Array Corp., Japan) 방식과 CCD 방식 (SEDAS Media Film Scanner, Kodak, japan) 디지타이저에 의해 디지털화 되었다. 그 영상들은 다시 분석을 위해 PACS를 통해 PC로 전송되어졌고 자체 제작된 소프트웨어를 이용하여 균일도에 대한 분석을 수행하였다. 하나의 사분면 영상에 대하여 일정한 간격과 크기로 20개의 ROI를 만들고, 그 내부의 픽셀값들의 평균값을 구하여 그 영역의 대푯값으로 하였다. 그 대푯값들 중 최대값과 최소값의 차이에 대한 백분율로써 균일도를 표시하였다. 그 결과 광학밀도가 0.19인 사분변의 영상에서의 균일도는 레이저 방식 및 CCD 방식 각각에서 99.8%, 94.3%였으며, 0.71인 사분면에서는 99.4%, 75.6%, 1.41 일때는 97.9%, 62.96%, 그리고 3.1인 사분면에서는 82.7%, 53.7%였다. 같은 광학밀도를 가진 사분면에서는 레이저방식의 균일도가 CCD 방식에 비해 더 우수함을 알 수 있었으며, 같은 방식에서 얻은 영상이라 할지라도 광학 밀도값이 높은 사분변에서 얻은 영상일수록 균일도가 떨어짐을 알 수 있었다. 결론적으로, 레이저 방식 필름 디지타이저는 균일도 면에서도 CCD 방식에 비해 우수함을 알 수 있었으며 CCD 방식은 백라이트의 균일도가 영상의 균일도에 영향을 미칠수도 있는 만큼 향후 거기에 대한 연구도 이루어져야 할 것으로 생각된다.

• The Journal of the Korea Contents Association
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• v.9 no.10
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• pp.378-388
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• 2009

The purpose of this study is to research hotel restaurant's servicescapes using Important-performance analysis. IPA is one of the simple and efficient method that can enhance service quality and customer satisfaction. Using this method for hotel restaurant's servicescapes and adopting social exchange theory to find out difference between person who paying and who does not. The results shows difference in 'Possible Overkill' quadrant, which is only group that does not pay include contents No.2, 8. The relation between servicscapes and behavior intention shows only tangible environment factor has positive effect.

• Journal of the Korean Society for information Management
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• v.28 no.3
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• pp.295-312
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• 2011

This study conducted time-series analysis on domestic studies related to entrepreneurship for more than last 50 years by integrating the co-word analysis method of intellectual structure analysis into the study of entrepreneurship. The co-word analysis method is a quantitative analysis method to analyze the overall trend of the study and further study topics by visualizing the information between study topics and arranging the topics on two-dimensional plane and the study result showed largely four phases and the direction of the study path. According to the analysis, the study is started at embryonic study phase(third quadrant), the study topic of independent study phase(second quadrant) is a phase to be a settled independent area as a study and the topics of the study include topics of the study reflecting the situation of the times. At growing study phase(first quadrant) study topics which are closely related to the study topic are arranged, and the topics, the center of the study, are positioned at the study topics of maturity phase(4th quadrant).

• Culinary science and hospitality research
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• v.15 no.2
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• pp.108-120
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• 2009

This study intends to examine the effect of the teenagers' selection attribute and satisfaction of fast food menu. Sampling was taken among the students of high schools at Changwon in Kyungnam province, and a total of 400 samples were distributed, among which 306 valid samples were used for analysis. After date cording, answers were processed by SPSS 12.0. As a result of the IPA analysis, the 1st quadrant included 8 variables, the 2nd quadrant 6 variables, the 3rd quadrant 5 variables, and the 4 quadrant 8 variables. Also, as a result of the factor analysis for menu selection attribute, 5 factors(atmosphere, food, staff, comfort, compensation) were extracted. It was found that only food has a statistically significant impact on satisfaction with fast food.

• Journal of KIISE:Software and Applications
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• v.26 no.1
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• pp.25-39
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• 1999

지리 정보 시스템에서 공간 분석을 위해 사용되는 중요한 연산인 공간 조인은 대상이 되는 공간 객체의 수가 증가함에 따라서 연산 시간이 지수적으로 증가하는 특징을 가지고 있다. 그러므로 다량의 공간 데이터에 대해서 공간 연산시간을 줄이기 위한 병렬처리가 필요하다. 이 논문에서는 비겹침 정규분할 방식의 사분트리를 이용한 공간 조인 알고리즘을 제시하고 MIMD 구조 및 공유 디스크 방식의 병렬 처리시스템에 적용하여 성능을 평가한다. 사분트리를 이용한 공간조인 방법으로서 중복 표현된 공간객체를 줄이기 위한 사분면(quadrant)의 병합 방법,영역 제한을 통해 연산 대상 객체를 줄이기 위한 사분면의 분할 방법, 그리고 병합 및 분할 방법을 혼용하여 공간 조인 연산의 숫자를 최소화하는 혼합 방법을 제시한다. 실험 평가에서는 각 방법들을 병렬 처리 시스템에 적용하여 여과단계 및 정제단계에서의 연산량과 수행 시간을 통해 성능을 비교 평가한다. 실험결과, 여과 단계에서는 분할 방법이 가장 우수했지만, 정제 단계에서는 병합 방법이 가장 우수했다. 따라서 전체적인 고려할 때 두 방법의 장점을 수용한 혼합 방법이 가장 우수한 성능을 나타냈다.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.15 no.2
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• pp.183-192
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• 2020

This study conducted an exploratory study to derive the success factors of entrepreneurial marketing for startups. Through Delphi analysis, we derived the items of proactive orientation, risk management, innovation, opportunity driven, resource leveraging, customer intensity, value creation, price setting, marketing communication, channel management, product development, sales and marketing information management. The importance and execution of success factors were measured through IPA analysis. The first quadrant(keep up the good work) has proactive orientation, risk management, resource leveraging, customer intensity. The second quadrant(concentrate here) has innovation. The third quadrant(low priority) has channel management, sales, marketing information management. The fourth quadrant(possible overkill) has prices setting, product development. These results showed that the success factors of startup's entrepreneurial marketing were proactive orientation, risk management, innovation, opportunity driven, resource leveraging, customer intensity and value creation.

• Journal of the Economic Geographical Society of Korea
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• v.9 no.3
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• pp.358-378
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• 2006

This study aims to examine seven factors and forty-two selection attributes of Seoul as an Exhibition and Convention Destination Site through the Importance-Performance Analysis(IPA) from the Exhibition and Convention Planner. The result of this study shows these three conclusions. First, according to the result of the Importance-Performance Analysis(IPA) of the forty-two selection attributes of an Exhibition and Convention Destination Site, thirteen attributes were placed on the right top area(Keep Up the Good Work), four attributes were placed on the right bottom area(Possible Overkill), five attributes were located on the left top area(Concentrate Here), and the other twenty attributes were located on the left bottom area(Low Priority). Second, the Importance-Performance Analysis(IPA) of seven factors in an Exhibition and Convention Destination Site reveals that the factors in the right top area(Keep Up the Good Work) of high importance and high performance were "Exhibition and Convention Center Facilities", "Exhibition and Convention Fee", and "Exhibition and Convention Center Accommodation Capacity". And the one factor located on the left top area(Concentrate Here) of high importance and low performance was "Exhibition and Convention Destination Regional Space", while the other factors of "Exhibition and Convention Center Management", "Exhibition and Convention Destination Tourism Space" and "Exhibition and Convention Destination Leisure Activity Space" were placed on the left bottom area(Low Priority) of low importance and low performance. Third, the difference of the mean value of the Importance and Performance on Seoul as an Exhibition and Convention Destination Site has been revealed that the performance of the attributes was lower than the importance of the attributes because forty attributes have described all plus(+) except two attributes.

• Journal of the Korea Institute of Building Construction
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• v.23 no.6
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• pp.773-784
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• 2023

Since 2007, the government has been actively working to enhance the quality of public buildings, as evidenced by initiatives like the "National Basic Architecture Plan" and, since 2014, the "Building Service Industry Promotion Act." Despite these efforts, educational facilities continue to experience more frequent defects compared to large-scale apartment constructions. This study aims to analyze the primary causes of crack formation in educational facilities, employing the 2×2 MATRIX and IPA techniques to develop efficient crack prediction models. The research includes a review of relevant literature and an analysis of data from the Office of Education spanning 2019 to 2021 to pinpoint significant defects. Subsequently, 15 factors related to crack defects were identified through surveys and expert consultations. The 2×2 Matrix analysis of these factors highlighted the challenges in work processes and the effectiveness of preventative measures for crack formation, focusing on key areas for improvement. The findings from this study are anticipated to significantly contribute to the prevention and management of structural cracks in educational facilities, ensuring their long-term integrity.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.11
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• pp.5448-5454
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• 2013

The purpose of this study is to provide preliminary data to improve the quality of vocational education program by analyzing basic occupational skills and acquired knowledge of vocational college graduates. A total of 236 graduates were sampled to examine their competency importance level - competency performance level, and study differences between competency importance level and contribution level of college education. The paired sample t-test and importance-performance analysis were employed to investigate meaningful differences between competency importance level and Competency performance level in regard to acquired knowledge and basic occupational skills. Meaningful differences were found in 12 areas at significance level of 0.01. According to importance-performance analysis, differences were presented in 4 areas in the first quadrant, 1 in the second quadrant, 4 in the third quadrant, and 3 in the fourth quadrant. In comparison study between competency importance level and college contribution level, the latter was found to be relatively less influential as differences were presented in all of 12 areas at significance level of 0.01. This research will helps to enhance the practicality and effectiveness of education program in vocational college.