• 경영과정보연구
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• 제32권3호
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• pp.107-125
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• 2013

본 연구에서는 공장-물류센터-고객으로 이어지는 공급사슬 네트워크를 구축하려는 기업의 의사결정에 도움을 주기 위해 2단계 공급사슬네트워크 설계를 위한 수학적 모형을 제시하고, 현실적인 문제를 대상으로 다양한 시나리오를 통한 민감도 분석을 수행하였다. 본 연구에서는 기존의 연구에서와는 달리 공장과 물류센터의 동시 입지선정, 공장과 물류센터의 용량 수준 결정, 공장과 물류센터의 설치 개수 제한과 같은 조건들을 모두 문제에 반영함으로써 현실 상황에 가장 가까운 문제를 대상으로 수학적 모형을 제시하였다. 기존의 연구들은 대부분 근사해를 찾아내는 효율적인 휴리스틱 해법 개발에 초점을 맞추었다. 그러나 본 연구에서는 공급사슬 네트워크 설계를 위해 다양한 시나리오들을 설정하고 각 시나리오별 결과를 분석하여 최적의 의사결정을 내리는데 도움을 주고자 하였다. 이를 위해 문제 크기별로 서로 다른 $5{\times}10{\times}30$, $10{\times}10{\times}100$, $10{\times}20{\times}200$ 등 세 가지 형태의 예제 문제를 만들고 엑셀의 해찾기 기능을 적용하여 풀어 보았다. 이 중에서 공장 후보지 10군데, 물류센터 후보지 20군데, 최종 고객 대리점 200군데인 $10{\times}20{\times}200$ 문제에 대해 공장과 물류센터 설치 개수에 대한 상한 제약조건을 배제한 문제를 추가적으로 풀어 보았다. 공장의 최적 입지 선정 결과를 고정시킨 채 물류센터 설치 개수를 변화시켜 가면서 모두 7가지 시나리오를 설정하여 민감도 분석을 수행해 보았다. 물류센터 설치 개수가 늘어남에 따라 inbound 수송비와 outbound 수송비가 어떻게 변하는지를 알아봄으로써, 기업 입장에서 비용뿐만 아니라 고객의 서비스 수준도 함께 고려하여 의사결정을 내리는데 도움이 될 수 있음을 알 수 있었다.

• 플랜트 저널
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• 제7권4호
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• pp.67-76
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• 2011

Two main features of the recent building project are the enlargement of the size and the technological complexity. Due to these features, the number or the size of organizations participating in building project is also increasing and the relationships between the organizations are becoming more interdependent than ever. Owing to these features, some delays or errors in the decision-making process in the phase of planning of a building project may influence many subjects related to the project. The most important factor for a successful project is to arbitrate confrontations and build cooperative relationships between parties who have different interests with one another in the project. Efforts were made to find out general features of building project and the features in the phase of planning in order to set a direction of this research. To solve problems in the phase of planning, the concept of 'cooperative design', which means that different features and interests of various organizations should be reflected from the phase of planning, was introduced. By introducing cooperative design in building projects, more rapid and objective decision-makings are possible.

• 디자인학연구
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• 제14권1호
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• pp.93-101
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• 2001

This study suggested how to apply it decision-making of product development rapidly by design evaluation process to objectify and the result to quantify with viewpoint of design evaluation sets to marketability. Coverage of this method limited to the evaluation stage of design concept. The procedure of study, first of all, referred to some type of design evaluation method and their feature. And next, referred to some kinds of demand forecasting for marketing. Above an, this study focused on the method of demand forecasting by buying intentions surveys proper to the marketability evaluation of new product design. On a case study, I had investigated preference survey and buying intentions surveys about the design proposal of "language master audio". I selected the best design proposal through the conjoint analysis and also investigated demand forecasting. First, on the basis of buying intentions surveys, choose population and had produced buying demand, awareness demand, potential demand. I could estimate some profit to take out expense and cost from the buying demand. This estimated profit is marketability judgement data of product design at the design concept stage and can be utilized to measurable data for decision-making of product development. Through the case study, this method could forecast a target demand, and even if it is some difference between real sales volume, but the case study could verified that this method is effective to the evaluation of marketability in case of completely new product got on the typical category and the product category could be set up the population clearly.

• 공학교육연구
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• 제23권6호
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• pp.27-32
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• 2020

The aim of this paper is to explore various ways to utilize critical thinking in engineering education. To this end, this paper, in the light of the relationship between critical thinking and the program learning performance of ABEEK, reviews engineering design education, engineering ethics education, and engineering communication education, which are major areas where critical thinking can be utilized in engineering education. As a result, it was confirmed that critical thinking skills, especially the elements and criteria of critical thinking, can contribute to the creative problem-solving process in engineering design education, the rational decision-making process in engineering ethics education, and the effective communication process in engineering communication education.

• 한국에너지공학회:학술대회논문집
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• 한국에너지공학회 1998년도 추계 학술발표회 논문집
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• pp.3-8
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• 1998

The present work proposes the potential fuzzy framework, based on fuzzy set theory, for supporting decision-making problems, especially, selection problems of a best design in the area of nuclear energy system. The framework proposed is composed of the hierarchical structure module, the assignment module, the fuzzification module, and the defuzzification module. In the structure module, the relationship among decision objectives, decision criteria, decision sub-criteria, and decision alternatives is hierarchically structured. In the assignment module, linguistic or rank scoring approach can be used to assign subjective and/or vague values to the decision analyst's judgment on decision variables. In the fuzzification module, fuzzy numbers are assigned to these values of decision variables. Using fuzzy arithmetic operations, for each alternative, fuzzy preference index as a fuzzy synthesis measure is obtained. In the defuzzification module, using one of methods ranking fuzzy numbers, these indices are defuzzified to overall utility values as a cardinality measure determining final scores. According these values, alternatives of interest are ranked and an optimal alternative is chosen. To illustrate the applicability of the framework proposed to selection problem, as a case example, the best option choice of four design options under five decision criteria for primary containment wall thickening around large penetrations in an advanced nuclear energy system is studied.

• 근관절건강학회지
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• 제20권3호
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• pp.214-224
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• 2013

Purpose: The purpose of this study was to identify the differences in preference for terminal care between hospitalized patients and nurses. Methods: A cross-sectional descriptive design was used in 79 patients and 107 nurses. The data were collected from August to October 2011, using the Preference for Care near the End of life Scale - Korean Version (PCEOL-K) with 5-point scale of 26 items. The reliability of the tool was Cronbach's ${\alpha}=.74$. Results: The mean score (SD) of PCEOL-K's sub-dimensions in nurses' priority was: (a) pain $3.70{\pm}0.63$, (b) spirituality $3.63{\pm}0.61$, (c) family $3.40{\pm}0.70$, (d) autonomous decision making $2.30{\pm}0.66$, and (e) decision making by healthcare professionals $2.14{\pm}0.64$. In patients' priority, the $M{\pm}SD$ score of each sub-dimension was: (a) pain $3.86{\pm}0.65$, (b) family $3.83{\pm}0.57$, (c) decision making by healthcare professionals $3.37{\pm}0.85$, (d) spirituality $3.01{\pm}0.80$, and (e) autonomous decision making $2.43{\pm}0.63$. Results indicated significant differences between nurses and patients regarding decision making by healthcare professionals (t=-11.28, p<.001), family (t=-4.66, p<.001), and spirituality (t=5.71, p<.001). Conclusion: The PCEOL-K of patients was higher than nurses'. A terminal care program for hospitalized patients at the end of life should be planned according to the results of PCEOL-K in nurses and patients.

• 경영정보학연구
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• 제4권2호
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• pp.223-236
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• 2002

복잡한 의사결정과 협상 환경을 위한 에이전트 기반 시스템은 환경에 대한 감지 및 반응이라는 간단한 작동방식을 가지는 다중 에이전트 시스템과는 다르게 접근되어야 한다. 본 논문에서는 가상 생산 환경을 응용 분야로 하여 복잡한 의사결정과 협상 환경을 위한 다중에이전트 시스템을 구현하는 과정에서 발생하는 연구이슈를 정리하고, 이들을 해결하는 하나의 사례를 제시한다. 가상 생산 환경은 다수 조직치 존재, 자원제약의 문제, 시간이 제한된 상황에서의 일정 계획 문제 등 복잡한 의사결정과 협상 환경의 전형적인 요소를 가지고 있다. 이 문제를 해결하기 위해서, 본 연구는 시간제약하에서의 외부협상 및 내부협력을 위한 프로토콜을 개발하고, 실세계의 시간제약을 만족하는 범위에서 최적화모형과 휴리 스틱모형을 상황적으로 적응하는 체계를 제시하며, 에이전트간의 소통 메시지를 이들 의사결정모형으로 모형화하는 과정을 예시한다.

• 한국화재소방학회논문지
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• 제33권5호
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• pp.86-93
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• 2019

IoT 기술의 발달과 함께 소방시설의 변화는 가속화되고 있으며, 이 중 대표적인 변화는 소방시설과 스마트폰 앱을 연계한 대피안내시스템의 개발이다. 하지만 이와 관련된 선행연구들은 시스템의 구성에 초점을 두고 수행되고 있으며, 표준화된 피난안내도의 작성매뉴얼과 관련된 연구는 부족한 실정이다. 이에 본 연구진은 표준화된 스마트폰 피난안내도의 기준을 수립하기 위한 기초연구로서, 스마트폰 피난안내도의 구성요소별 표시방법의 유형과 크기에 따른 의사결정시간을 분석하였다. 선행연구 고찰과 법규 고찰을 통해 실험요소를 도출하였으며, 30명의 피실험자를 대상으로 구성요소 표시방법의 유형과 크기에 따른 의사결정시간을 분석하였다. 이후 통계검정을 통해, 스마트폰 피난 안내도 구성요소별 작성기준을 제시하였다.

• 한국항만학회지
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• 제9권2호
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• pp.9-24
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• 1995

The intensification of the competition among container terminals has led to important affect such as, decision making or aggressive intervention of customers for terminal operation. Therefore, in case of developed ports, the large transition of port operation is composed of the press of terminal customer than decision making of terminal manager. Overall port tariffs for using terminal is made out by the conference of terminal customers than the supreme headquarters of terminal operation, and the related investment of terminal has been made according to requisition or proposal of customers. Therefore, among decision making problems that shippers, shipping companies, and freight forwarder among decision making problems that shippers, shipping companies, and freight forwarder face, the choice of the container terminal is one of the most important problems. So, the decision making of the users seems to have a significant impact on the competitive power of container terminals. The main objective of this study is to design port marketing strategy for strengthening the competitive power of container terminals. The results of this study were found as follows: Firstly, port authority should establish user-oriented operation policy of terminal as the means of activating the opinion window, using terminal monitoring system(TMS). Secondly, terminal planning and development of government should be made to minimize the lead time, to induce the civil capital and to utilize the economies of scale. Thirdly, port authority needs to endeavor to analyze the information of competing foreign terminals as well to promote the concentrated marketing for the terminal on the users, to train the expert and to develop the new port charge system. Fourthly, to improve the competitive power of the container terminal, Port Authority should optimize the subsystems related to port marketing, far more these systems should be joined organically to work effectively. Finally, port authority system should be introduced, Namely, port should have the enterprise inclination as well s the public inclination.

• Human Ecology Research
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• 제61권3호
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• pp.401-414
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• 2023

This study examined the sequential mediation effects of academic achievement attribution and career decision-making self-efficacy on the effect of paternal and maternal helicopter parenting on high-school students' career preparation behavior. A total of 285 (119 male and 166 female) Korean high-school students in the second grade participated in the study. Research variables were measured using the Career Preparation Behavior Scale (Kim, 1997), Helicopter Parenting Scale (LeMoyne & Buchanan, 2011), Attribution Questionnaire (Weiner, 1979), and Career Decision-Making Self-Efficacy Scale-Short Form (Betz et al., 1996). To examine the sequential mediating effect, data analysis was performed using SPSS 29.0 and PROCESS MACRO (v4.2) Model 6. The results revealed no correlations between helicopter parenting and academic failure attribution. However, higher paternal and maternal helicopter parenting were found to indirectly reduce high-school students' career preparation behavior through lower internal academic success attribution (effort and ability) and higher external academic success attribution (task difficulty and luck), which reduced career decision-making self-efficacy. These findings can be employed to develop more effective intervention programs comprising career guidance for adolescents, which emphasizes the negative effect of helicopter parenting. This study expands the research field, as previous findings on helicopter parenting mostly focus on college students.