• Korean Journal of Construction Engineering and Management
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• v.18 no.3
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• pp.42-51
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• 2017

Measuring and evaluating project progress and performance are the key element of the construction project success. Construction progress is typically measured quantitatively by evaluating cost and time allocated to the project deliverable, and thus properly integrating cost and time is essential to the project management. This research was performed to propose an alternative methodology to integrate the cost and time and provide a framework for the progress measurement. The researchers developed a typical work process for the cost and schedule planning and also developed an alternative cost-schedule integration method by using progress integration units (PIU). A discipline of a construction phase served as a common level for WBS and CBS integration, so the PIUs'were defined under discipline. A case study project was selected to validate the developed methodology. The result showed the proposed method improved efficiency of cost and time integration. The result also showed the excluding material for the progress measurement purpose significantly reduced the bias of progress measurement.

• Korean Journal of Construction Engineering and Management
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• v.24 no.3
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• pp.3-11
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• 2023

This research examines the need for a quantitative and objective method of calculating baseline productivity in the construction industry, which is known for its high volatility in performance and productivity. The existing literature's baseline productivity calculation methods rely heavily on subjective criteria, limiting their effectiveness. Additionally, data collection methods such as the "Five-minute Rating" are costly and time-consuming, making it challenging to collect detailed data at construction sites. To address these issues, this study proposes an objective baseline calculation method using unimpacted productivity BP, a work check sheet to systematically record detailed data, and a data collection and utilization process that minimizes cost and time requirements. This paper also suggests using unimpacted productivity BP and comparative analysis to address the objectivity and reliability issues of existing baseline productivity calculation methods.

• Journal of Korean Society of Transportation
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• v.32 no.4
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• pp.327-335
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• 2014

The Korean government, as of last year, is attempting to introduce a competitive system in the rail-market. However there are some pertinent issues which need to be addressed in order to select the best possible organization for optimum railway traffic control. As there are no standard guidelines in selecting an agency, objective evaluation factors need to be properly applied to ensure the best possible decision is made. Through literature review and various interviews with experts, appropriate criteria were selected to evaluate the suitability of each potential operator. As generally mentioned, both safety and efficiency play vital roles in the selection process but in addition, there are other factors such as security and fairness, which also need to be considered. The individual weight of these factors were calculated by the AHP, in which three groups of experts were interviewed to acquire their expertise. According to the results, as a potential operator, the score of a railway operating company and the management cooperation of railway is 2.75 and 3.85, respectively. In the future, in preparation towards becoming a competitive rail-market, this research is expected to assist in choosing the best party to control the rail traffic system.

• Journal of The Korean Association of Information Education
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• v.24 no.5
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• pp.511-518
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• 2020

Preparing for the Fourth Industrial Revolution and Corona-19, our education is expanding a new chapter of learning to the era of AI education that incorporates software technology beyond software education. In this study, we will analyze the case of learner-centered assessment in software education and examine the assessment direction of artificial intelligence education through its effectiveness. Through the case of applying learner-centered assessment to non-computer subjects including computer subjects, we sought the effects on learners' learning, environmental conditions and assessment models of learner-centered evaluation, and through the case of applying the learner-centered assessment model to software education, we wanted to find out what the learner-centered assessment in artificial intelligence education suggests to the educational site. According to the analysis, the learner-centered assessment had a significant effect on the learner's achievement goal, and it is expected that the learner-centered assessment in artificial intelligence education will be carried out smoothly when an objective evaluation system and objective evaluation model are designed to help the learner's assessment, building digital environment conditions based on intelligent information technology.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.19 no.3
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• pp.123-138
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• 2024

Experiential social entrepreneurship education offers participants opportunities for active engagement in social entrepreneurial activities. Highlighting the significance of psychosocial experiences within the program, this study examines work meaningfulness discovered in this process as the antecedent to forming social entrepreneurial intention. Furthermore, drawing on social cognitive career theory that emphasizes the role of agency in career decisions, we propose social entrepreneurial self-efficacy as the underlying mechanism and social class as the moderating factor in the relationship between work meaningfulness and social entrepreneurial intention formation. The propositions were tested with a two-wave survey dataset collected among 145 university students taking part in an experiential social entrepreneurship program in South Korea. Our results indicate that work meaningfulness positively affects social entrepreneurial self-efficacy, which subsequently promotes social entrepreneurial intention. Moreover, when participants' social class, measured by either household income or perceived rank, is lower, the positive effect of work meaningfulness on social entrepreneurial self-efficacy as well as intention is amplified. Theoretically, these findings shed light on the crucial role of work meaningfulness in strengthening potential entrepreneurs' agency in the domain of social entrepreneurship, particularly for those from lower classes. Practically, we provide guidelines for designing an inclusive experiential social entrepreneurship program that allows participants to find meaningfulness by realizing their strengths and justifying their prosocial contribution.

• Journal of the Institute of Convergence Signal Processing
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• v.16 no.3
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• pp.96-101
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• 2015

A tongue coating evaluation method for WTCI(Winkel Tongue Coating Index) is proposed in this paper, which is used as the diagnostic criteria in the tongue diagnosis. This method uses the color channel analysis and tongue coating extraction from the ultraviolet tongue image. Proposed method analyzes the histogram distribution of the respective color channel for extracting a tongue coating, and performs the verification test from the selected color channel in the tongue coating extraction. Also, Objectivity of the tongue diagnostic criteria is verified by the artificial sample and real-tongue image experiments. In order to evaluate the performance of the proposed Computerized Assistant WTCI Evaluation method, after verifying a measurement accuracy by using the artificial sample images, and applying to the various real-tongue image of subjects. As a result, the proposed WTCI method is very successful.

• Journal of The Korean Association of Information Education
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• v.17 no.4
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• pp.507-513
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• 2013

The purpose of this paper is to compare the learning effectiveness of autonomous learning between on-line cyber learning using Internet media and off-line learning using printed media. In this study, each group is provided with the same learning contents and the same learning conditions. For autonomous learning the results revealed a significant difference between on-line cyber learning being not as effective as off-line learning. In order to improve the effectiveness of on-line cyber learning the negative aspects have been identified. These findings will help to improve the development of on-line learning effectiveness.

• Asia Marketing Journal
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• v.4 no.4
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• pp.97-119
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• 2002

본 연구는 우리나라의 주요 일간지들이 실시해 온 히트상품 선정행사의 현황을 집계하고, 그 타당성을 분석하며, 이러한 선정 결과의 공신력과 타당성을 높이기 위한 방안을 제시하기 위하여 수행되었다. 이를 위하여, 본 논문에서는 지난 10년간 10개 주요 일간지들이 실시한 히트상품 선정행사와 여기에서 선정된 5269개의 히트상품들을 연구대상으로 삼았다. 연구대상 일간지들 중에서는 '히트상품'으로 선정되기 위한 요건을 규정하지 않은 경우와 선정 기준들을 연도별로 변경하는 경우가 많았다. 또한, 전적으로 객관적인 데이터에 의존하거나 전적으로 심사위원들의 판단에 의존하는 방식이 대부분이었다. 선정된 히트상품들의 수렴타당성에 있어서는, 일간지들간에 적지 않은 차이가 나타났으며, 특히 상위권의 일간지들과 하위권의 일간지들간에는 통계적으로 유의한 차이가 발견되었다. 위와 같은 분석 결과들을 토대로, 일간지들의 히트상품 선정행사의 타당성과 공신력을 높이기 위한 몇 가지 방안들을 제시하고 있다. 첫째, 선정 기준들을 핵심기준과 확장기준으로 이원화하여 선정 기준의 일관성과 융통성 사이의 조화를 이루어야 한다. 둘째, 히트상품의 대상을 출시 후 1년 이상 2년 미만의 상품으로 한정하여야 한다. 셋째, 상품의 상업적 성공여부와 함께 상품의 윤리성에 대해서도 충분한 고려를 하여야 한다. 넷째, 같은 카테고리에서 경합하는 경쟁 상품들을 동시에 선정하는 경우는 최대한 지양되어야 한다. 다섯째, 전문가들의 판단과 객관적인 데이터를 효과적으로 결합하는 방법에 대해서 보다 많은 연구가 필요하다.

• Proceedings of the Korea Information Processing Society Conference
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• 2008.05a
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• pp.131-134
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• 2008

한의학의 대중화와 세계화를 위해서는 타 의학과의 차별화와 진단의 객관성 확보가 매우 중요하며 이를 위해서는 한의학의 독창적인 의료체계인 사상의학을 통해 차별화를 이루고 또한 객관성 확보를 위해 IT 공학기술과 연계하여 진단기술을 개발한다면 효율적일 것으로 예상한다. 본 논문에서는 사상의학의 체질 분류를 목적으로 하여 체질 분류법 중 용모사기론을 기반으로 한 안면 영상을 통한 사상체질 분류시스템을 개발하기위해 20대 여성을 대상으로 안면 영상을 수집하고 피실험자에 대한 체질분류 작업을 진행하여 안면 요소와 체질 간의 상관관계를 분석하여 체질별 차이를 나타내는 항목을 설정하고 이에 대한 분석을 실험을 통해 수행하고자 한다.

• 한국IT서비스학회:학술대회논문집
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• 2006.11a
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• pp.299-307
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• 2006

글로벌 비즈니스 환경에 있어서 경쟁력을 유지 혹은 강화시키기 위한 방법으로 많은 기업들이 경영혁신 활동에 주력하고 있다. 식스 시그마는 이러한 활동을 가능케 하는 핵심적인 방법론이자 도구로써 주목 받고 있다. 따라서 본 연구에서는 식스 시그마의 도입에 따른 성과요인을 분석하여 보다 체계적인 프레임워크를 제시함으로써 그 성공 가능성을 관리할 수 있도록 하는 것이 주요한 목적이라 하겠다. 이를 위해 전문가 집단을 대상으로 한 델파이 조사방법과 이를 분석하기 위한 도구로써 계층적 분석기법(AHP)을 적용하였다. 분석결과, 총 12개의 요인들이 도출되었으며 중요도에 따라 가중치를 계산하여 이를 실제 식스 시그마 프로젝트에 적용하여 연구에 제시된 프레임워크를 검증토록 하였다. 본 연구는 다양한 산업 및 기업에서 식스 시그마 방법론의 적용이 급속히 확대되어 가는 추세에서 프로젝트의 성패를 가늠짓게 하는 중요 요인들을 보다 객관적인 프레임워크로 제시되었다는 점에서 그 의의가 있을 것이다.