• 품질경영학회지
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• 제15권2호
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• pp.74-81
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• 1987

The purpose of this paper is to find out the relative priority among the queueing products for next operation. Critical ratio scheduling is a technique for use in production scheduling to establish and maintain relative priority among the jobs. The relative priority is based on a ratio of when the completed job is required and how much time is required to complete it. A numerical example of "D" company is solved. Jobs are classified into 3 categories; the behind scheduling jobs, the on time jobs and the ahead scheduling jobs.

• 한국항행학회논문지
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• 제15권6호
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• pp.1098-1103
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• 2011

클라우드 컴퓨팅의 장점에도 불구하고 보안성에 대한 문제들이 많은 사용자들의 선택에 장애가 되고 있다. 본 논문에서는 클라우드 컴퓨팅의 보안성에 대한 ISO 7498-2 표준의 관련 속성들이 전체 보안 품질에 미치는 상대적 영향도를 평가하였다. 많은 요인들의 영향도를 객관적으로 평가하기 위하여 Fuzzy AHP(Analytic hierarchical process)를 적용하였다. 본 연구는 클라우드 컴퓨팅 서비스의 보안 관련 각 속성들의 상대적 중요성을 구체적으로 수치화 할 수 있었고, 클라우드 컴퓨팅 서비스의 효율적인 선택 및 개발에 필요한 관리 방법을 제시할 수 있었다.

• 한국통신학회논문지
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• 제22권4호
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• pp.855-869
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• 1997

In this paper, we proposed two kids of dynamic priority control mechanisms controlling the cell service ratio in order to improve the QOS(Quality of Service). We also analyse theoretically the characteristics of cell loss probability and mean cell delay time by applying the proposed priority control mechanisms to ATM switch with output buffer. The proposed priority control mechanisms have the same principles of storing cells into buffer but the different principles of serving cells from buffer. The one is the control mechanism controlling the cell service ratio according to the relative cell occupancy ratio of buffer, the other is the control mechanism controlling the cell service ratio according to both the relative cell occupancy ratio of buffer and the average arrival rate. The two service classes of our concern are the delay sensitive class and the loss sensitive class. The analytical results show that the proposed control mechanisms are able to improve the QOS, the characteristics of cell loss probability and mean cell delay time, by selecting properly the relative cell occupancy ratio of buffer and the average arrival rate. conventional DLB algorithm does not support synchronous cells, but the proposed algorithm gives higher priority to synchronous cells. To reduce synchronous cell loss rate, the synchronous cell detector is used in the proposed algorithm. Synchronous cell detector detects synchronous cells, and passes them cells to the 2nd Leaky-Bucket. So it is similar to give higher priority to synchronous cells. In this paper, the proposed algorithm used audio/video traffic modeled by On/Off and Two-state MMPP, and simulated by SLAM II package. As simulation results, the proposed algorithm gets lower synchronous cell loss rate than the conventional DLB algorithms. The improved DLB algorithm for multimedia synchronization can be extended to any other cells which require higher priority.

• 한국의류산업학회지
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• 제9권1호
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• pp.81-88
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• 2007

This study aimed to develop priorities alternatives based on relative rather than absolute assignments on clothing evaluative criteria. The relative comparison approach includes much redundancy and is thus less sensitive to judgemental errors common to techniques using absolute assignments. By deriving evaluative criteria for consumers in choosing clothing, and considering their relative important or value in the priority of evaluation elements. When the consumer selects clothing, it requires multi-criteria decision making exercise and needs to make trade-offs between different alternatives. With an application of the AHP's hierarchical structuring and pair-wise comparisons, this study will determine the weight and priorities of evaluation factor in clothing evaluative criteria in choosing cloth, which will eventually lead to improve management. Items for the setting priority were decided as 'symbol', 'practicality', 'economy', 'vogue', and 'aesthetic' by council. The data for this research were collected from respondents of 108 females in Busan. Data were analyzed by frequency and AHP. As the results, 'economy' was decided as a most important item. And 'a fashionable color' evaluated as that of first priority in the totality evaluation elements.

• 한국환경복원기술학회지
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• 제15권4호
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• pp.51-60
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• 2012

Most streams in Korea have been managed mainly for the control of flood or usages of the water for agriculture, industry, and others, resulting in the loss of their natural characteristics. In recent years, ecological system and function of streams are recognized as very important, and a paradigm change in their management is prevailing. This study, first, analyzed recent stream restoration policies and projects and derived major restoration planning factors; second, evaluated relative importance and priority of the factors using AHP (Analytic Hierarchy Process) method. The derived planning factors were four factors for the level 1, and sixteen factors for the level 2. Relative importance and priority of each factor were calculated, and finally, a composite relative importance and priority of all the factors were suggested. These findings are hoped to support stream restoration policies and be used in drafting restoration guidelines.

• 한국병원경영학회지
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• 제16권2호
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• pp.78-97
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• 2011

The purpose of this study is to analyze activating factors of medical tourism at Busan, and then decide on priority on the factors. As research methods, this study deduced priority of specialists' opinions by AHP analysis technique through structuralized questionnaire on the medical tourism's factors having been suggested from existing prior studies. The analysis results were same as followings. First, as a result of analysis on the main criteria, relative levels of importance were appeared high such as 'competitiveness', 'policy assistances from the government', 'medical care's infrastructure', and 'connectedness with regions' in order. Second, as a result of integrated results analyzing detailed criteria on the main evaluation standards, relative levels of importance were appeared high such as 'medical quality', 'health-related institution's improvement', 'medical infrastructure', 'medical charge', 'tourism-related institution's improvement', 'convenience', 'medical cooperation possibilities', and 'local industry compliance' in order. In conclusion, it is judged that activation of medical tourism shall be propelled after considering relative levels of importance on many policies or activating factors same as suggested in this study.

• 한국콘텐츠학회논문지
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• 제12권4호
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• pp.263-272
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• 2012

본 연구는 공무원 교육훈련정책의 상대적 중요도와 우선순위 분석을 통해 공무원교육훈련정책의 방향성을 모색해보고자 전문가들을 대상으로 AHP 방법론을 적용한 실증적 분석을 실시하였다. 연구결과를 요약해 보면 다음과 같다. 첫째, 측정영역별 평가요소에 대한 상대적 우선순위를 보면, 교육훈련운영시스템, 교육훈련프로그램, 교육인프라, 교육훈련평가관리 중에서 교육훈련운영시스템이 가장 중요한 평가요소로 분석되었다. 둘째, 평가항목의 관점에서 보면, 교육훈련프로그램에서는 Acting Learning 교육프로그램, 교육훈련운영시스템에서는 교육훈련기관 예산확충, 교육훈련평가관리에서는 교육훈련과 인사제도 연계, 교육인프라에서는 교수요원 확보 등이 상대적으로 가장 중요한 우선순위로 평가되었다. 이러한 분석결과는 공무원 교육훈련정책을 경험적으로 설명하는데 기여할 것으로 판단된다.

• 한국광학회:학술대회논문집
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• 한국광학회 2009년도 동계학술발표회 논문집
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• pp.307-308
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• 2009

To reduce delay for high priority packets in the ring-based EPON, the EPON packet classifier groups services as their priorities and frames for services are dynamically framed as their priorities. Since dynamic framing for a packet priority dynamically changes assignment spaces in the maximum framing packet size as network traffics, it makes services with high priority to improve quality of services with relative low threshold time for transmitting.

• 기술혁신연구
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• 제6권2호
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• pp.178-207
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• 1998

This article suggests a methodology to decide the priority of investment project for venture business under the dynamic circumstance. By the Monte Carlo procedure on the probability distribution of cost and revenue, the model simulates the investment project to estimate profit ratio and risk. The profit ratio is calculated on the yearly basis for the relative comparison. The project risk is calculated as semi-variance under the target yield. After sufficient simulations in this fashion for several projects, the efficient projects with more profit and less risk are selected by the dominance principle. Then the regression equation of the selected projects is produced to find the relative value of the projects. The relative value is obtained through dividing the raw profit ratio by the estimated one on the equation. This value shows the degree to which the simulated project yields over the equation. The priority of investment is decided by this value. An examplary venture business of chemical development for semi-conductor is presented as a case study.

• 경영과학
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• 제19권2호
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• pp.139-153
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• 2002

The Analytic Hierarchy Process (AHP) is known as a very useful decision-making model developed for obtaining the relative weights of alternatives through pairwise comparison in the context of hierarchical structure. In this paper, we propose a method to reflect the reliability of evaluators in the process of pairwise comparison. This method is applied to the evaluation of aerospace technology alternatives. We have conducted a questionnaire survey for S company that is one of the representative aerospace companies in Korea. A questionnaire was designed for obtaining both the priority with considering the reliability of evaluators' importance weights (the modified AHP priority) and the priority with assuming equally reliable evaluators' importance weights (the AHP priority) in order to compare the priority derived by each of two methods. The result shows that there exists the difference hard to neglect between the final priorities gained by two methods.