• 제목/요약/키워드: Engineering Economic Decision

검색결과 311건 처리시간 0.031초

A GIS Based Decision Support System for Prospects Screening and Evaluation

  • Yanqing, Yu;Xincai, Wu;Ge, Zhang;Xiaoming, Luo;Feng, Li
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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    • pp.310-312
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    • 2003
  • This paper discusses a GIS based decision support system that provides functions of prospect screening and evaluation in both technical aspects (Volume, structure, trap, reservoir and charge, etc.) and economic aspects (Net present value, Profit / investment Ratio, etc.). The decision support system has been tested in a virtual offshore exploration prospect to facilitate and improve the decision making process. The study represents a test bed for decision makers at all levels to establish prospect screening and evaluation guidelines that may be applicable to other related prospect investment issues.

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공급 사슬 환경에서 중소 제조 기업의 가격 결정 전략에 관한 연구 (A Study on Pricing Decision Strategy of Small and Medium Size Manufacturing Company in Supply Chain Environment)

  • 황승준;김태영;금병찬
    • 산업경영시스템학회지
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    • 제34권2호
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    • pp.68-75
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    • 2011
  • The purpose of this paper is to suggest a supplier and buyer's pricing decision strategy model with discount-policy over a long-term replenishment contract in a supply chain environment by small and medium size manufacturing company. We assume that the buyer has a superior economic power over a supplier and each agent in a supply chain is unaware of each other. The supplier proposes pricing decision strategy to induce the buyer to choose the terms of contract for the benefit of the supplier. Then buyer decides the terms of contract to maximize her profit considering supplier's discount-policy. We also present a numerical example to illustrate the efficiency of pricing decision strategy.

한.일 트랙터의 보유속도와 수요요인 비교 (The Comparative Analysis of Holding Pace and Decision Factors of Tractor in Korea and Japan)

  • 강창용;김남욱
    • Journal of Biosystems Engineering
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    • 제25권5호
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    • pp.391-398
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    • 2000
  • This study was performed to analyze the holding pace and decision factors of tractor in Korea and Japan, which probably should be used for making master plan of agricultural mechanization. The logistic function is used for holding pace estimation of tractor, and log-log function for analysis of decision factors. The results of this study are as follows: First, the increasing rate of the total amount of holding tractor power in Korea has been over that in Japan during 1980∼、94 which is now, however, under Japan. So, it could be forecasted that the per tractor holding power in Japan will increase continuously, and will be over 30PS in the short run. Second, the most important one of decision factors to support tractor demand is agricultural income in Korea, but on the other hand Non-Agricultural Income in Japan. From these, the fast increase of total amount of holding power of tractor in Korea could not expected, because Korea Agriculture has some difficulties to increase Agricultural Income. There are differences on the holding pace and decision factors of tractor between Korea and Japan, therefore, the plan of agricultural mechanization should be made in accordance with self-features.

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Entropy-TOPSIS 기법을 활용한 군집별 상수도관망 위험도 관리순위 결정 (Prioritization decision for hazard ranking of water distribution network by cluster using the Entropy-TOPSIS method)

  • 박해금;김기범;형진석;김태현;구자용
    • 상하수도학회지
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    • 제35권6호
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    • pp.517-531
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    • 2021
  • The water supply facilities of Korea have achieved a rapid growth, along with the other social infrastructures consisting a city, due to the phenomenon of urbanization according to economic development. Meanwhile, the level of water supply service demanded by consumer is also steadily getting higher in keeping with economic growth. However, as an adverse effect of rapid growth, the quantity of aged water supply pipes are increasing rapidly, Bursts caused by pipe aging brought about an enormous economic loss of about 6,161 billion won as of 2019. These problems are not only worsening water supply management, also increasing the regional gap in water supply services. The purpose of this study is to classify hazard evaluation indicators and to rank the water distribution network hazard by cluster using the TOPSIS method. In conclusion, in this study, the entropy-based multi-criteria decision-making methods was applied to rank the hazard management of the water distribution network, and the hazard management ranking for each cluster according to the water supply conditions of the county-level municipalities was determined according to the evaluation indicators of water outage, water leakage, and pipe aging. As such, the hazard ranking method proposed in this study can consider various factors that can impede the tap water supply service in the water distribution network from a macroscopic point of view, and it can be reflected in evaluating the degree of hazard management of the water distribution network from a preventive point of view. Also, it can be utilized in the implementation of the maintenance plan and water distribution network management project considering the equity of water supply service and the stability of service supply.

다기준의사결정 모형을 이용한 FMS 투자대안의 선택에 관한 연구 (The Selection of Alternatives for the FMS Investment Using a MCDM)

  • 김영식;정상윤;배영주
    • 산업경영시스템학회지
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    • 제16권27호
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    • pp.113-119
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    • 1993
  • The purpose of this study is to develop a analytic procedure of the alternatives for the FMS that consist of high-priced facilities. A procedure to analysis the alternatives are as follows. Stage one is procedure to appraise investment alternatives of FMS and devide factors into strategic, analytic, economic viewpoint and draw upon decision making matrix through normalization Stage two is appraise to normalized alternatives using TOPSIS model among multiple attributes decision making models.

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연구개발과제 선정을 위한 단계별 평가모형 (An Evaluation Models for R&D Projects Selection)

  • 이상철;하정진;김성희
    • 산업경영시스템학회지
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    • 제17권31호
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    • pp.73-80
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    • 1994
  • Sequentiality in decision making is an inherent characteristic of the R&D Process, Conceptual changes are noted during the Course of the Project which represent a continuous improvement in the quality of the data available during the various project stages. In this paper, Eight characteristic types of project evaluation models have been developed economic index models, portfolio models, decision theory models, risk analysis models, frontier models, scoring models, profile models and checklists. Each of these will be critically reviewed and appraised.

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R&D 프로젝트 투자 의사결정을 위한 실물옵션 의사결정나무 모델 (Real Option Decision Tree Models for R&D Project Investment)

  • 최경현;조대명;정영기
    • 산업공학
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    • 제24권4호
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    • pp.408-419
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    • 2011
  • R&D is a foundation for new business chance and productivity improvement leading to enormous expense and a long-term multi-step process. During the R&D process, decision-makers are confused due to the various future uncertainties that influence economic and technical success of the R&D projects. For these reasons, several decision-making models for R&D project investment have been suggested; they are based on traditional methods such as Discounted Cash Flow (DCF), Decision Tree Analysis (DTA) and Real Option Analysis (ROA) or some fusion forms of the traditional methods. However, almost of the models have constraints in practical use owing to limits on application, procedural complexity and incomplete reflection of the uncertainties. In this study, to make the constraints minimized, we propose a new model named Real Option Decision Tree Model which is a conceptual combination form of ROA and DTA. With this model, it is possible for the decision-makers to simulate the project value applying the uncertainties onto the decision making nodes.

기술적 ${\cdot}$ 경제적 영향요소를 고려한 연약지반 개량공법의 의사결정모델 개발 (Development of Decision Making Model for Soft Foundation Improvement Method considering Technically, Economic Effective Factors)

  • 이흥철;우성권
    • 한국건설관리학회:학술대회논문집
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    • 한국건설관리학회 2006년도 정기학술발표대회 논문집
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    • pp.698-701
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    • 2006
  • 연약지반 상에 구조물의 안정 및 침하 문제를 해결하기 위해 다양한 연약지반 개량공법들이 사용되고 있으며, 계속해서 새로운 공법들이 검증과정을 거쳐 소개되고 있다. 이처럼 다양한 공법들 중에서 해당 공사에 가장 적합한 공법을 선정하는 것은 매우 중요한 일이다. 본 연구에서는 의사결정시 사용되는 영향요소들의 중요도를 정량화시켜 가중치와 우선순위를 도출함으로써 연약지반 개량공법 선정 과정에서 기술적 ${\cdot}$ 경제적 항목에 대한 체계적인 기준을 제시하고자 하였다.

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TOPSIS-Based Decision-Making Model for Demolition Method Selection

  • Lee, Hyung Yong;Cho, Jae Ho;Son, Bo Sik;Chae, Myung Jin;Lim, Nam Gi;Chun, Jae Youl
    • Architectural research
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    • 제23권4호
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    • pp.67-73
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    • 2021
  • An efficient demolition process requires the optimum method selection considering stability, economic feasibility, environment, and workability. In reality the construction cost and period are priority concerns, and safe construction methods are neglected. In addition, the choosing demolition method is often determined subjectively by experienced field engineers. This research paper presents a multi-criteria decision-making method using Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) to select the optimum demolition method. Three experienced demolition engineers' opinions were used to develop the TOPSIS model. The case study showed that the preferences of ten attribute measurements for demolition method selection. Authors suggested the most preferable demolition method for the case study project.