• 제목/요약/키워드: project uncertainty

검색결과 285건 처리시간 0.025초

식품산업 연구개발의 결정론적 평가방법에 관한 연구 (A Study on the Deterministic Evaluation Method of R&D Project in Food Industry)

  • 이종만;이근희
    • 산업경영시스템학회지
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    • 제14권23호
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    • pp.57-64
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    • 1991
  • The preliminary, advanced and final evaluation of R&D project is essential in order to reduce loss of resource and opportunity and to minimize uncertainty resulting from optimal selection and efficient progress of R&D project. This thesis examined characteristics of deterministic evaluation, economical evaluation, and OR-approach evaluation as theoretical methodology of evaluation of R&D project applicable to food industry in Korea by using scoring method, one of deterministic evaluations. In addition, this thesis divided the evaluation factors for preliminary evaluation of R&D project into 5 groups and 30 factors on basis of the environment of domestic companies and set up the standard of each evaluation factors and contains marking-selecting way. But, generally, the evaluation model by this thesis, as the conditions of the business company environment are different to each other, contents to be set up evaluation factors, evaluation standard and decision method conforming to each the environment of the business companies with referring to as one standard of evaluation project for selecting R&D project.

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Individual behavioral competences for construction project risk manager

  • Lee, Kwang-Pyo;Lee, Hyun-Soo;Park, Moonseo;Kwon, Byung-ki;Hyun, Hosang
    • 국제학술발표논문집
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    • The 6th International Conference on Construction Engineering and Project Management
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    • pp.183-187
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    • 2015
  • The Risk Management (RM) is applied for managing uncertainty of project. In this circumstance, the competences of RM have a direct effect on the performance of its application. Especially, as the RM, one of the project management areas, is a peopleoriented management field, the individual behavioral competences are significant for a risk manager. Therefore, this paper describes the development of individual behavioral competences for construction project risk manager. For this, the research classifies the individual behavioral competences of RM. And, the Exploratory Factor Analysis (EFA) are applied to verify a validity of the competences. Likewise, a reliability analysis using Cronbach's alpha values is performed to test internal consistency. Based on the results, the authors carry out the Focus Group Interview (FGI) on expert panels of construction RM to confirm the hierarchical model of the individual behavioral competences. It is concluded that the proposed hierarchical model of individual behavioral competences helps construction companies to diagnose the competences of their project risk manager for progressing.

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대학건축물의 리노베이션 수행체계구축 - 수행체계 마련을 위한 수행과정의 사례분석을 중심으로 - (The Constitution of Process Model for Renovation System of University Building - Focused on the Preparation for the Constitution of Renovation System by Analyzing the Performed Projects -)

  • 김종필;박근준
    • 한국실내디자인학회논문집
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    • 제32호
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    • pp.105-112
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    • 2002
  • The Purpose of this paper is to describe a decision model which can be used to establish an implementation system of renovation for university building. Any implementation model relies on the work scopes of renovation which varies design, project cost, construction duration. The renovation system is subject to evaluation of work steps which is different from each project. Accordingly, the decision model of renovation is necessary to use the application of the analytical hierarchy process. Many of the performance steps used in general renovation condition may be known with uncertainty. This research has shown how probabilities can be explicitly incorporated in the decision model of renovation to assess this uncertainty.

ANALYSIS OF THE PROCESS OF FABRICATION OF STEEL STRUCTURES USING AN AUTOMATIC CONSTRUCTION SYSTEM

  • Hak-Ju Lee;Yoonseok Shin;Wi Sung Yoo;Hunhee Cho;Kyung-In Kang
    • 국제학술발표논문집
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    • The 3th International Conference on Construction Engineering and Project Management
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    • pp.1081-1087
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    • 2009
  • An automatic construction system in Korea is now at the stage of the full automation like in Japan, and an actual pilot project is going to be built in 2009. However, in developing a new construction system that has never been implemented before, there is a need to assess the performance and to consider the uncertainty of the system. The program evaluation and review technique (PERT) allows dealing with this uncertainty. Thus, this paper implements an analysis of the process of steel fabrication and makes suggestions for time-related problems arising from the analysis. The time required for steel erection by the automatic system was compared with that in the traditional method. In the result, finding out another construction process and improving robot performance were proposed to resolve the problems. The results will contribute to promoting the development of an efficient system for the new automatic construction system.

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해상송전선로 설계 및 시공기술에 대한 고찰 (Design & Construction Technologies of 345kV marine Transmission Line)

  • 윤영순;김태영;김병호;나경구
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2005년도 제36회 하계학술대회 논문집 A
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    • pp.545-547
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    • 2005
  • 345kV youngheung tansmission line which has been constructed in the western sea is the first and the largest marine project in the world crossing the youngheung island and the sihwa bay. It helps the stabilization of power supply greatly to cope with the rapid growth of the electric power consumption in the metropolitan areas and Gyeonggi province. Haying constructed the project successfully with the purely domestic-developed technologies, KEPCO is able to not only accumulate more advanced technologies of the marine project but also establish a bridgehead toward overseas market. It is very meaningful that we completed project successfully in spite of many difficulties including the uncertainty of the first project in the sea and strong objections from the environment groups and local residents. In this paper I will briefly introduce the project, newly developed technologies and materials.

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프로젝트 파이낸싱을 활용한 국내 SOC 민간투자사업 건축기획 단계에서의 리스크 관리 (A Risk Management of Architectural Planning Phase in the Korea Private Infrastructure Project Using Project Financing)

  • 이신영;김선규;이낙운
    • 산업기술연구
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    • 제27권B호
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    • pp.177-184
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    • 2007
  • Project Financing(PF) was introduced from the way of banks' conditional financing that take buried oil as security and offer required money to oil explores which have weak loaning ability in the U.S. 1930s. After that PF has developed with financial market and it has been activated in the market of Korea since 'An Institution about Private Financing Invitation Promotion' was established. Started with I-Hwa Ryoung tunnel project, PF has been used in the Metropolitan Area Airport Highway and etc. But because of the risk that occurred by PF's complexity and uncertainty, PF has not been used fully and there are only few practical examples. The purpose of the present study is to investigate how to decrease, identify and extract the risky factors of project that being planned by PF.

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PROJECT SCHEDULING WITH START-TIME DEPENDENT COST AND IMPRECISE DURATION

  • Siamak Haji Yakhchali
    • 국제학술발표논문집
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    • The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
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    • pp.468-473
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    • 2011
  • The goal of a project manager is generally to minimize the cost of the project and also to cope with uncertainty. This paper deals with the problem of project scheduling a set of activities satisfying precedence constraints in order to minimize the sum of the costs associated with the starting times of the activities in the network with imprecise activity durations, represented by means of interval or fuzzy numbers. So far this problem has been completely solved by several authors when the activities durations have crisp values. However, they do not consider the imprecision in activity durations in their models. Here the framework of possibility theory is proposed to solve this problem. In fuzzy arithmetic, usually, the interval calculations are used for the aim of complexity reduction and simplification. Thus the case of interval-valued durations is first addressed, and then extended to fuzzy intervals. A numerical example is used to illustrate the developed concept.

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연구사업관리 주관기관에 따른 기술혁신 R&D 프로젝트 성과 영향분석: 공공과 민간 기업의 차이 비교 (The Effects on the R&D Project Performance according to the Characteristics of Project Management Organizations: The Difference between Public and Private Companies)

  • 이용규;박소현;김희경;이태원
    • 산업경영시스템학회지
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    • 제46권2호
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    • pp.116-132
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    • 2023
  • Technology innovation companies are focusing on contributing to business performance by R&D project as a strategic tool. Successful R&D leads to corporate competitiveness enhancement, national industrial development, but there are high uncertainty and risks in R&D. Public and private R&D projects are carried out to achieve various purposes. It was verified how the risk management and benefit management of the R&D project affect the detailed R&D project performance between the Public and private domain. The impact of Project Leadership on R&D performance was also analyzed. Those who have participated in the Public and Private R&D projects at companies or research institutes were surveyed. First, it was found that project risk and benefit management have partially an effect on R&D project performance. Second, Public and private R&D Project Leadership showed partially a interaction effect between project management and project performance.

FUZZY APPROACH TO PROJECT DELIVERY SYSTEM SELECTION

  • F. Nasirzadeh;N. Naderpajouh;A. Afshar;A. Etesami
    • 국제학술발표논문집
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    • The 2th International Conference on Construction Engineering and Project Management
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    • pp.662-671
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    • 2007
  • Since variety of construction projects with their individual specifications could be handled through different procurement systems, selection of the most appropriate project delivery system is a vital step towards more efficient project execution. The appropriate selection of project delivery system may also ensure more competent management of the project. Its impacts are not only limited to the first stages of the project, as it could also influence pre-construction, construction and operational phases of the project. Among different approaches exerted for this purpose, none has taken uncertainty into account, despite the fact that during first stages of the project most of the selection factors are still uncertain and not clearly defined. This paper, hence, aims to provide a fuzzy insight into the project delivery system selection. Through this approach more tangible model of the evaluation process may be presented. Proposed fuzzy method is indeed a multi criteria decision making model, based on the group of criteria, assigned for the evaluation procedure. A case study is also conducted, based on the opinion of an invented group of the experts.

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프로젝트 리스크 관리(PRM)가 프로젝트 성공에 미치는 효과성 분석: 해외건설사업 수행단계 전반을 중심으로 (Analysis of the Effectiveness of Project Risk Management (PRM) on the Project Success: Focused on the Implementation Phase of Overseas Construction Projects)

  • 정설림;김대철
    • 산업경영시스템학회지
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    • 제46권3호
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    • pp.221-230
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    • 2023
  • Under increased complexity and uncertainty of overseas construction projects, it is important for construction companies to improve their own project risk management capabilities instead of risk-taking strategies to secure competitiveness in the overseas construction market. Although most of the risks occur in project execution stage, many previous studies focused on planning stage including risk identification and analysis among PRM process. Therefore, this study aims to verify the effectiveness of whole PRM process during project execution stage through empirical study on participants of overseas construction projects. As the result it was found that first, the factor directly affects the project success is the execution process of PRM. It implies that appropriate actions such as appointing charged manager for risks, timely implementation of responding plan, continuous risk monitoring and updating established plan are the key for contribution to the project success. Second, the importance of communication in PRM is also found, which is not conducted at a specific but throughout the entire PRM process and need to be managed as essential factor for successful PRM..