• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.13-18
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• 2003

국내 건설프로젝트의 대부분은 설계, 시공, 운영이 별도의 체계로 운영이 되이온 경향이 많은 바, 이를 개선하기 위해선, 기획단계에서 운영단계에 이르는 건설생애주기 단계별로 수행업무절차를 체계적으로 정립하여야 한다. 본 고에서는 이를 위하여 인천국제공항철도사업을 모델로 바람직한 대형공사에서의 사업관리 수행체계에 대하여 알아보았다.

• Journal of Korea Technology Innovation Society
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• v.9 no.4
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• pp.654-687
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• 2006

Research-based spin-off venture, generally formed to commercialize technology originating from public research institution, could contribute to economic wealth creation and regional development. Although there are some interests in research-based spin-off venture and its success factors across stages of growth, little empirical research was done on research-based spin-off venture's success factors in Korea. The purpose of this research is to investigate research-based spin-off venture's success factors across stages of growth. The methodology used is theoretical and case study. Based on theoretical study, it is found that there are four stages of growth in research-based spin-off ventures such as generating business ideas, finalizing new venture projects, launching spin-off firm, and strengthening the creation of economic value. Then, in order to verify them, a case was analyzed focused on success factors across stages of growth. Additionally, implications and limitations of the result of this study are discussed.

• Proceedings of the Korean Society of Marine Engineers Conference
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• 2012.06a
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• pp.43-46
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• 2012

2011년 IMA의 자료[1]에 의하면, 현재 251척의 부유식 생산설비가 운영되고 있으며, 이중 FPSO가 차지하는 비율은 64%에 이른다. 또한, 가장 각광을 받고 있는 부유식 생산설비의 유형인 FPSO는 현재 40여척을 건조 (New building) 및 개조(Conversion)를 하고 있다. 전체적인 FPSO의 개발 및 건조 프로젝트는 일반 선박 프로 젝트와는 다르게 환경적, 정치적, 상업적인 영향을 많이 받는다. 예를 들면, 같은 구역에 석유/가스 채굴을 위한 프로젝트를 승인받은 기업들은 각자의 기술력, 재정상태, 채굴구역의 정치적인 영향력에 따라서 프로젝트의 초기 개념설계부터 전혀 다른 방향으로 구축할 수 있다. 이러한 변수가 많은 프로젝트를 성공적으로 수행하기 위해서는 각 단계별 세부 계획도 동시에 이루어져야 한다. 본 연구에서는 이러한 세계적인 해양구조물의 대표 격인 FPSO의 특성을 보고하고 이와 관련되는 프로젝트의 다양한 수행 절차 및 시스템/장비에 대해 설명한다.

• The KIPS Transactions:PartD
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• v.11D no.7 s.96
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• pp.1483-1490
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• 2004

To accomplish a project successfuly, we have to estimate develpment effort accurately. But, development effort is different to software size and operation environment. Usually, we made use of function point for estimating development effort. In this paper. we make use of 789 project data. It is related to development projects in 1990`s. We investigate the variable affecting development effort. Also, we exedcute multiple liner regression analysis for looking linear relation about variables. We find the regression equation for multistage by dividing PDR that influ-enced development effort step by step.

• Korean Journal of Construction Engineering and Management
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• v.15 no.3
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• pp.23-30
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• 2014

Overseas construction orders of domestic companies had been increased significantly in a short period from $10.9 billion in 2005 to $64.9 billion in 2012. However experts are concerned that quality of growth will not support quantitative growth. This study suggest concentrate competencies for not only winning in bid but also successful execution of domestic companies. 4 Steps which are Pre-Marketing, Bid-Preparation, Bidding, Contract Phase are defined for competency assessment. After drawing specific tasks by phase, survey asking importance and capability of the tasks to the person in charge of bidding and site was conducted by utilizing Likert 7 point scale. According to the result of IPA analysis, domestic construction companies need to ensure internal competencies; Project risk review, Bid team organization, and external competencies; Client needs grasp, Localization strategy, Cooperation establishment. Hearafter domestic construction companies will be able to utilize the result of the study for setting bidding strategy for winning in bid and improving earning rate.

• Korean Journal of Construction Engineering and Management
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• v.5 no.3 s.19
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• pp.97-105
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• 2004

Planning phase became very important because the construction market in Korea is often unpredictable. The existing feasibility analysis cannot fulfill its purpose in development projects because they are based on intuitive approach rather than systematic approach. The purpose of this study is to make a prototype of feasibility model to be a good investment. To build the model, first, risk factors which can be occurred in project had to be selected. Risk factors were divided into several groups in basis of characteristical risk. Economical risk factors were input on financial analysis. Then, to catch the relevance and influence of all risk factors, influence diagram and decision tree were made. Finally, sensitivity analysis was activated, then what the critical factors were, and how those factors could be solved. Through these procedures, the feasibility model that was made in this study could include both quantitative and qualitative factors. This model is expected to be used as a guide of feasibility analysis including all risk factors and is to serve systematic frame in planning and feasibility stage.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.402-405
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• 2003

As Remodeling is proceed in the limited condition that is utilization of existing resource, the selection of remodeling objects and scope are affected by the correlation of building systems. Unexpected problems have occurred in construction phase by lack of the consideration about correlation of building systems; increasing of cost, delaying of schedule etc. Therefore, this research suggests the Building System Correlation Diagram Model and the method for selecting the alternative reasonably in remodeling project.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2010.04a
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• pp.141-144
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• 2010

건설공사 프로젝트는 기획, 설계, 시공, 운영 및 유지관리 등 각 단계의 다양한 참여 주제에 의해 프로젝트가 진행되고 각 분야 간 원활한 의사소통을 통한 협업으로 일을 진행해 나간다. 그러나 각 단계별 커뮤니케이션이 원활히 이뤄지기가 힘들며, 이러한 단계별 분절의 가장 큰 이유 중 하나가 실제적 결과물은 3차원 기반인 것에 비해, 그 과정이 2차원 CAD 시스템에 의존하는 결과와 과정의 격차 때문이다. 그로 인해 각 관련 분야에서 발생되는 정보의 불확실성, 부정확성, 표현의 애매모함 등으로 인해 재작업 및 불필요한 작업이 빈번히 발생하여 전체적인 공정의 지연 및 비용의 문제, 결과물의 품질에 대한 문제가 발생하고 있다. 또한 도면에서의 한계점인 거리감, 공간감 등 실제 사람이 느끼는 Scale감을 알 수 없어 공간에 대한 이해도가 떨어지는 한계점을 극복하지 못하고 있으며 1인칭 작업운영 방식으로 인하여 협업 설계과정에서 원활한 팀워크를 유도 할 수 없다. 따라서 본 연구에서는 협업설계 과정에서 기본설계 단계를 지원하는 설계 도구로서 건축모델의 단순 시각화에서 벗어나 가상공간에서 몰입형 VR 시뮬레이션을 구현하기 위하여 프로토타입 응용을 개발 하였고, 이것을 "Digital Studio"에 구현하여 즉각적인 공간 시뮬레이션을 통하여 실제 시공 전에 문제점들을 검토 및 보완하고 전체적으로는 생산성 향상과 설계 과정 중 오류를 최소화하기 위한 VR시뮬레이션 시스템의 제안 및 Viewer 모듈을 개발 하였다.

• Journal of the Korea Computer Industry Society
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• v.2 no.6
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• pp.859-866
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• 2001

Successful project planning relies on a good estimation of the effort required to complete a project, together with the schedule options that may be available. Despite the extensive research done developing new and better models, existing software effort estimation models are present only the total effort and effort (or manpower： people per unit time) function for the software life-cycle. Also, Putnam presents constant effort rate in each subcycles. However, the size of total efforts are variable according to the software projects under the influence of its size, complexity and operational environment. As a result, the allocated effort in subcycle also differ from project to project. This paper suggests the linear and polynomial effort estimation models in specifying, building and testing phase followed by the project total effort. These models are derived from 128 different projects. This result can be considered as a practical guideline in management of project schedule and effort allocation.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2007.11a
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• pp.864-867
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• 2007

Recent advancement in ICT and IT infrastructure drives the construction industry towards a IT-based industry. Accordingly, the importance of the planning phase of a project is significantly highlighted due to recent large-scale national development projects such as U-city and multifunctional administration city. various development and studies are conducted on the convergence of 3D CAD and GIS in order to support the decision making by simulation of each phase of construction prior to the actual construction of a building. However there has been limits to the implementation of the IT technology in the planning phase due to its characteristics such as high reliability on the experts knowledge and the compliance of the administration work. In this study, a trendy issue of the convergence of the GIS technology with the 3D CAD design data is suggested to improve the efficiency of a decision support in the planning phase.