• Proceedings of the Computational Structural Engineering Institute Conference
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• 2010.04a
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• pp.218-221
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• 2010

발주자는 건설 프로젝트의 주요 의사결정을 초기단계에 내리게 되므로 정확한 예산을 예측하는 것이 중요하다. 그러나 건설 프로젝트의 대형화, 복잡화 그리고 건설산업계의 새로운 패러다임인 BIM(Building Information Modeling)의 등장에도 불구하고, 초기단계에서 정확한 공사비를 예측할 수 있는 표준화된 산출방법이 없어 아직까지도 대부분의 설계사무소에서는 실시설계단계에서 확정된 설계안에 따른 견적을 이용하며 초과된 비용에 대해 통합품질을 저해하는 행위를 통해 조정하고 있다. 초기단계에서 보다 정확한 공사비를 예측하므로써 발주자는 의사결정을 함에 있어 올바른 판단을 내릴 수 있으며, 이 단계에서 발생한 정보를 활용하여 이후 단계에도 유용하게 쓰일 수 있을 것이다. 본 연구에서는 발주자 의사결정 지원시스템 상에서 BIM기반으로 개략공사비를 산출할 수 있는 프로세스를 제안한다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.38C no.4
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• pp.344-350
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• 2013

It is essential to consider geometry in the early design stage for rational design decisions. However, a crucial decision had been taken by conversation, physical model, and gesture rather than BIM mode which can analyze geometry efficiently. This research proposes the framework of interaction between BIM model and physical model for real-time BIM analysis. Through this real-time system framework of two models, architects can adopt BIM data at early design stage to review analysis of BIM model. It should facilitate dynamic design based on rich BIM information from an early stage to a final stage.

• Korean Journal of Construction Engineering and Management
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• v.23 no.1
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• pp.89-97
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• 2022

Recently, various problems such as reduced productivity, insufficient inflow of skilled manpower, reduced quality, and concerns about increasing safety accidents have appeared in the domestic construction industry. Stakeholder of construction project are considering the Off-Site Construction (OSC) method rather than the conventional on-site construction as an alternative. Despite the importance of decision making in the early stage of the adoption of OSC, there is a lack of methodologies for rational decision making. In this study, a decision making system has been developed to derive the final construction cost score by deriving the project characteristics, selecting the construction difficulty index, and developing a cost model for each construction method alternatives to calculate the standard construction cost. Using this system, the OSC method can be effectively evaluated in terms of its feasibility in the early stage of construction

• Journal of the military operations research society of Korea
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• v.32 no.2
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• pp.212-222
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• 2006

The defense innovation 2020 advanced topics which have to establish robust milatary are based on archiving defense innovation by selecting twenty-one main topics and eighties' sub-topics whose topics focus on defense innovation and defense circumstance in 2020. Although defense innovation 2020 which is to be advanced with defense basic policy need to decision making, it is specified in programming step by merging budget with plan. If the Defense Ministry archives decision making from initial plan step, although it archives group decision making in programming step at present, it will archive efficient affair. This study archives a group decision making of defense innovation 2020 advanced topics which were published in the Defense Ministry by applying Analytic Hierarchy Process in plan step. In addition, if the weights of the main topics are equal, the sub topics analyze how to be changed throughout sensitivity analysis and suggest the topics' priority rank throughout group decision making.

• 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.

• Agrochemical news magazine
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• v.23 no.5 s.178
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• pp.10-13
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• 2002

농약은 농산물 생산에 있어서 병해충 및 잡초를 방제함으로써 생산성을 높이는데 필수적인 농업자재로 인식하고 있다. 그런데 모든 화학물질이 그러하듯이 농약도 두 가지 양면성을 지니고 있다. 즉, 약효와 독성이다. 일반적으로 농약은 뿌려진 농약의 $0.1\%$이하만이 목표물이라고 할 수 있는 해충 및 잡초, 이병작물에 떨어지고 그 외는 비표적 생물 및 환경매체에 떨어짐으로써 생태계에 영향을 준다고 한다. 약효는 농약으로서 지녀야 하는 당연한 기능이지만 독성은 가능한 줄여야 할 기능이기 때문에 농약회사에서는 약효는 높으면서 사람과 생태계에는 좀 더 안전한 농약을 개발하기 위해 애쓰고 있다. 우리나라는 전세계적으로 볼 때 농약을 비교적 많이 사용하는 나라로 알려져 있으나 경제규모 및 사용량에 비해서 생태계에 대한 농약관리는 앞서가지 못하고 있는 것이 현실이다. 따라서 농약의 생태위해성 평가에 대한 기본적인 이해를 돕기 위해 이번호부터 연재를 통해 생태위해성에 대한 기본개념을 소개함과 동시에 국내외 농약등록제도에서의 생태위해성 의사결정 과정을 비교하고 마지막으로는 국내 농약관리제도에 있어서 생태독성분야의 의사결정에 대하여 개선방안을 제안하고자 한다.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.9 no.3
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• pp.47-61
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• 2014

Many angel investors hesitate to invest in early-stage company. Most early-stage company has no sales and only R&D step project or in early approach of market. So it's impossible to evaluate early-stage company quantitatively. Therefore many angel investors depend on CEO's tendency to evaluate company and make decision for investment. The purpose of this study is discover the entrepreneurial characteristics of CEO and the importance level which affect on the angel investors decision making factors for investment. To identify the factors of entrepreneurial characteristics, survey was conducted by Delphi Technique which is involved by 20 experts who is angel investment club members, venture capitalists, CEOs and officers. Three rounds of survey results derived 10 elements of entrepreneurial characteristics for investment decision making factors including reliability, risk sensitivity, passion, perseverance, integrity, leadership, startup experience, organizational management skills, innovation and social networking. In addition, this study derived the importance level of elements of entrepreneurial characteristics based on the AHP(Analytic Hierarchy Process) theory and maintained the logical consistency by pair-wise comparison for each element. As a result of analyzing the importance of entrepreneurial characteristics, the sequence is reliability (18.1%), integrity (15.9%), leadership (11.7%), organizational management skills (10.0%), social networking (9.5%), passion(9.1%), perseverance(8.4%), innovation(8.1%), startup experience(5.3%) and risk sensitivity(3.9%) respectively. The significance of this study is somewhat decrease limit of the uncertainty arising from angel investors and angel investors can help a decision making, by discover factors of entrepreneurial characteristics that can be called the biggest influencing factors among Investor's investment decision-making In early stage companies and compare importance.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2007.11a
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• pp.295-298
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• 2007

Recently, various problems have been occurred in Apartment reconstruction process. Such as, delaying schedule, additional cost increasing, etc. Those were caused by decision making which is lack of professionality in early phase of reconstruction process. Therefore, in this study proposed improvement plan by application of project management and construction management process in Apartment reconstruction project.

• Proceedings of the Korean Society for Cognitive Science Conference
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• 2002.05a
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• pp.99-104
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• 2002

본 연구는 의사결정과 성격평가에 있어서 컴퓨터를 매개로 한 의사소통(CMC) 조건과 면대면 조건간에 어떠한 차이가 있는지를 알아보았다. 4∼5명으로 구성된 17개 집단 각각은 CMC 조건에서 기여입학제, 면대면 조건에서 학부제에 대해 30분씩 찬반토론을 하였다. 참가자들은 토론 전 및 진행동안 매 8분씩 총4회에 걸쳐 개인 의사결정을 평가하였고, 토론 마지막 부분에서 집단의사결정을 실시하였다. 분석 결과, 두 조건 모두에서 집단의사결정의 극단화 현상이 나타났다. 면대면 조건에서는 집단토론이 이미 초기단계에서 개인들의 의사결정에 영향을 미쳐 더 극단적으로 변화시켰지만, CMC 조건에서는 집단토론이 개인의사결정에 어떠한 영향도 미치지 않았다. 또한, 각 조건에서 토론 후 자신과 타인에 대한 성격을 평가하였다. 그 결과, 두 조건 모두에서 자신에 대한 평가는 유사했으나, 다른 사람에 대한 평가는 면대면 조건보다 CMC 조건에서 더 부정적이었다. 또한, CMC 조건보다는 면대면 조건에서 나에 대한 자기평가와 타인에 의한 평가간의 일치도가 외향성과 지적인 측면의 교양 차원에서 더 컸다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.207-211
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• 2008

The importance of cost management in early stage has been increasing due to market change and competition severence in construction industry. Because the adjustable budget is only 20% after finishing design stage, the critical decision is made in the early stage. However, in the early stage, the design information is not enough to make crucial decision. Therefore, this research suggests the predicting method on the purpose of accurate cost estimation. The parametric estimation is appropriate for the early stage, especially it has the strength of rapidity in cost estimation. This research analyzes 84 actual data of public apartment on the scale of $11{\sim}15$ stories, and then performs the correlation analysis between cost and influence factors. After eliminating the parameters which causes the problem of multicollinearity, this research derived the formula through the multi-regression analysis.