• Korean Journal of Construction Engineering and Management
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• v.12 no.3
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• pp.83-90
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• 2011

Although the CM(construction management) market in Korea has shown rapid growth, unlike other market sectors, there has been lack of a system by which the economy trend of the CM market can be analyzed. The objective of the paper is to analyse and identify key characteristics of the CM market as of the third quarter of 2010 by using the CMBSI(Construction Management Business Survey Index) which was proposed in the previous study. In the paper, the CMBSI is used as the main index along with other five supplementary indices. The use of the CMBSI can contribute to enhancing the understanding of CM market situation and prospect, and also to providing information for CM policy and regulations.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.337-340
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• 2003

Currently the number of project ordered as Construction Management is increasing. In advanced country, critical success factor of construction industry and case study is used for increasing productivity of construction project. This study presents the check list of critical success factor and analyzescase study of Construction management project in order to apply Construction Management Project in domestic industry.

• Korean Journal of Construction Engineering and Management
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• v.15 no.5
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• pp.71-81
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• 2014

As domestic construction investment has been gradually reduced, the issue of expanding overseas CM market has increased. Strengthening CM capability from the view point of project life-cycle is required in overseas CM market. However, current regulations institutionally force public CM services to focus on the construction phase. Therefore, Korean CM firms can hardly have the opportunities for accumulating technical competitiveness especially for pre-construction phase. Result of this study shows that the total efforts in terms of man-hours for the construction phase is found to be more than 78 percent in domestic public CM projects. In this context, this study proposes the policies and tasks for improving 'rigid man-hour placement', 'unreasonable CM fee standards', 'CM firm selection method', 'unreasonable business scope decision', and 'evaluation of owner's project management capability' in order to improve domestic CM Industry as well as to expand overseas CM market successfully.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.27-31
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• 2003

최근 해외시장에서는 Single Point Responsibility 개념의 선호와 프로세스사업관리능력의 중요성으로 건설사업관리 (Construction Management: 이하 CM)방식이 프로젝트 조달의 중요한 방안으로 사용되며 국내에서도 최근 CM 발주량의 획기적인 증가추세로 사업수행능력 향상을 위한 도구 개발이 절실하다. 가장 유용한 도구로는 국내${\cdot}$외 CM 수행사례 분석을 통해 이에 저해되는 요인과 모범사례 등을 파악하여 산업계로 하여금 체계적 점검과 벤치마킹을 통해 수행능력을 제고할 수 있는 핵심성공요인과 Best Practice의 보급 발간이다. 따라서 본 논문은 최근 감사원에 의해 모범선행사례로 선정된 무주 하천 1,2급 수해복구 건설사업관리 용역에 대한 CM성과를 분석하여 핵심성공요인과 Best Practice를 제공하는 것을 주요 목표로 한다. 본 CM용역에서는 무엇보다도 무주군내 수해복구공사에 CM 사업방식을 도입한 것은 현명하고 진취적이며 시기 적절한 일이라고 판단되며 이러한 선도적 기자체의 의욕적인 시도가 지방에서 수행되는 공공공사의 수준을 한 차원 높이는 계기가 됨은 물론 항구적인 복구공사기법의 하나로 정착하기를 기대한다. 또한 산업계는 CM관련 중심기관을 통하여 이러한 모범사례의 연속적인 분석과 보급을 통해 산업계 전반적인 CM수준을, 제고하여 국내외 CM확대 적용의 기반을 조속히 조성할 수 있기를 바란다.

• Korean Journal of Construction Engineering and Management
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• v.17 no.5
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• pp.97-107
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• 2016

CM services have been focused on the advancement of the CM industry and expansion to overseas market based on CM capabilities. However, there has been lack of quantitative and comprehensive research to investigate current CM trends and prospects for improving competitiveness. In this sense, the purpose of this study is to statistically analyze total of 3,453 CM service contracts over the past 18 years (between 1997 and 2014) in term of market type, contract size, owner's type, commodity type. Finding of this research reveal that 1) compared to 2005, CM market size in 2015 increased as much as 2.5 times, and that 2) domestic CM projects count for 87.5%, architectural project 88.4%, less than 1 billion won small contracts 75%, respectively. Also, recently as CM company are developing capability and competitiveness, 1) overseas CM market share has grown up to 20% among total CM contract amount, and 2) CM contracts by private owners has increased 3 times demanding the total management services based on high technical capability. Additionally, the result of this paper supports the growth path model proposed by Jung et al. (2014), where a path from Domestic Public (DP3) and Domestic Private (DC2) CM projects towards the expansion to International Private (IC5) contracts was quantitatively analyzed. Implications for other practical issues are also briefly discussed.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2015.05a
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• pp.207-208
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• 2015

CM services have continued to grow since the establishment of CM policies in 1997. Recently, strategies for overseas CM services have widely been discussed, because the CM services have expected synergy with planning, engineering, procurement and construction. However, there has been lack of quantitative and comprehensive research to investigate CM trends and prospects. In this sense, the purpose of this research is to statistically analyze total of 2,983 CM service contracts over the past 16 years (between 1997 and 2013) published in KISCON (Knowledge Information System of Construction Industry) in order to examine current status and future direction of CM industry.

• Journal of Radiation Industry
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• v.11 no.3
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• pp.167-171
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• 2017

This study examined the effectiveness degree of a protective apron that is taken not to be exposed to the first ray or scattered rays, for X-ray of thick subject like lateral lumbar, and the results are as follows; First, spatial dose by scattered rays is shielded by 3 mmPb protective apron, 86.8% at a distance of 50 cm, 92.7% at 100 cm, and 95.6% at 200 cm, when minimizing the field size, while 89% at a distance of 50 cm, 92.3% at 100 cm, and 95.2% at 200 cm, when maximizing the field size. Second, 1st exposure dose is shielded by 3 mmPb protective apron, 93.7% at a distance of 50 cm, 94.4% at 100 cm, and 93.6% at 200 cm, when minimizing the field size, while 93.7% at a distance of 50 cm, 93.6% at 100 cm, and 94.2% at 200 cm, when maximizing the field size.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.104-112
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• 2003

우리나라의 건설산업은 70년대에서부터 지금까지 압축된 경제성장 과정을 거치면서 인구의 도시 집중화 현상에 따른 엄청난 물량의 아파트 건설로 숨가쁘게 물량 공급에만 급급해 왔지 상대적으로 건설시공의 효율성과 합리적인 건설관리에는 소홀하여 왔다. 이는 곧 반복되는 부실시공과 대형 건설재해를 유발시켜 건설업에 대한 대중적인 이미지 실추는 물론 품질과 안전관리가 국가적인 위신문제로까지 대두되게 되었다. 이러한 시접에서 건설산업의 문제점을 풀어나가기 위한 개선책으로 등장하게 된 것이 CM이라고 생각한다. CM을 통하여 설계와 시공을 통합관리하고 현장 시공과정에 내포되어 있는 부실 요인을 찾아내어 제거하고 시정조치하고 이를 유사 Project에 Feed-back시킴으로써 점진적인 향상(Progressive Improvement)을 이루어내며 제약된 자원을 효율적으로 이용하여 원가를 절감함으로써 건설산업의 경쟁력을 강화시켜 나가는 것이 곧 CM 활용의 효과라 할 수 있을 것이다. 본 논문은 15년간 현장소장(Project Manager)의 경험을 바탕으로 CM기법을 건설현장에 적용 사례한 결과를 정리한 것이다.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2015.05a
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• pp.209-210
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• 2015

Since CM policies established in 1996, contracts of CM services are continuously increasing over the past years. As constant improvement of positive awareness about public/private owners and CM capabilities of domestic construction companies, a number of efforts were being made to acquire competitiveness of domestic and overseas CM market. However, there has been lack of quantitative and comprehensive research to investigate CM firms. The purpose of this research is to statistically analyze total of 2,983 CM service contracts over the past 16 years published in KISCON (Knowledge Information System of Construction Industry) in order to examine CM owner type.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 2000.05a
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• pp.85-92
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• 2000

본 연구에서는 인터넷 쇼핑몰 패키지용 전자지불시스템에서 구매자가 인터넷상에서 안전한 지불을 하기 위해 사용하는 전자지갑인 CM-Wallet을 SET프로토콜기준에 따라 개발하였다. CM-Wallet은 RSA 1024bit, Triple DES 168bit 암호키 및 전자서명, 이중서명을 생성함으로서 메시지 보안도가 SET 기준을 만족하였다. 그리고, 복잡한 절차는 내부적으로 처리하여 구매자가 사용하기 쉽게 화면으로 보여지는 절차를 간소화하였으며, 전자지갑을 사용할 때 복잡한 절차에 대한 불편함을 해소하였다.