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실험계획법을 이용한 TCP 데이타 부분에 대한 상호운용성 시험스위트 생성
유지원(Jiwon Ryu),김명철(Myungchul Kim),설순욱(Soonuk Seol),강성원(Sungwon Kang),이영희(Younghee Lee),이근구(Keunku Lee) 한국정보과학회 2001 정보과학회논문지 : 정보통신 Vol.28 No.2
통신 프로토콜의 상호운용성을 시험하기 위한 시험경우를 생성하는 방법론이 논문 [1, 2, 3]에서 제안되었고 TCP와 ATM 프로토콜에 적용되었다. 이들 방법론으로 생성된 시험경우는 제어 부분만을 고려하고 있다. 그러나 실제 시험에 있어서는 데이타를 고려하여야 하며, 완전한 시험이 되기 위해서는 이들 변수들이 가질 수 있는 모든 값에 대한 시험을 거쳐야 하지만 이것은 현실적으로 불가능하다. 본 논문에서는 데이타를 포함하는 시험을 하기 위하여 논문 [1]에서 도출한 시험경우에 제어 부분과 데이타 부분을 동시에 고려하여 TCP의 연결 설정 절차에 대한 시험경우를 도출한다. 이 과정에서 시험경우의 수가 너무 커지는 것을 피하기 위해 최소의 실험횟수로 최대의 정보를 얻을 수 있도록 실험계획법(experimental design)을 이용한다. 실험계획법은 적합성 시험에는 적용되었지만 아직 상호운용성 시험에는 적용되지 않았다. 이 방법을 통해 데이타 부분을 포함하는 상호운용성 시험경우를 생성하고, 시험의 검출력 (power of test)을 유지하면서 최소화된 시험경우로 상호운용성 시험을 할 수 있는 가능성을 보인다. Test derivation methods suitable for interoperability testing of communication protocols were proposed in [1, 2, 3] and applied to the TCP and the ATM protocols. The test cases that were generated by them deal with only the control part of the protocols. However, in real protocol testing, the test cases must manage the data part as well. For complete testing, in principle we must test all possible values of data part although it is impractical to do so. In this paper, we present a method generating the interoperability test suite for both the data part and the control part of protocols with the example of TCP connection establishment. In this process, we make use of experimental design techniques from industrial engineering to minimize the size of test suite while keeping testing capability. Experimental design techniques have been used for protocol conformance testing but not for interoperability testing so far. We generate the test suite for data part by this method and show a possibility that we can test interoperability of protocols with the minimum number of test cases while maintaining the testing power.
이수인(Sooin Lee),유지원(Jiwon Ryu),설순욱(Soonuk Seol),김명철(Myungchul Kim),마중수(Joongsoo Ma) 한국정보과학회 1999 한국정보과학회 학술발표논문집 Vol.26 No.2Ⅲ
정보 통신 프로토콜의 한 구현물이 표준에 맞는지를 조사하기 위해 적합성 시험을 수행해 왔다. 그러나, 정보통신 환경의 급격한 변화로 인해 적합성 시험에 합격한 장비 및 서비스들간에도 상호 운용시에는 제대로 동작하지 않는 현상이 종종 발생하게 되었다. 이로 인해 정보통신 서비스 및 제품 개발에 있어서 상호운용성 시험의 요구가 증대함에도 불구하고, 국내외적으로 권고하고 있는 국제적인 표준이나 시험체계 및 방법 개발이 미진한 실정이다. 따라서, 본 논문에서는 상호운용성 관련 연구 동향 및 기존의 국제 표준(안)을 분석하여 상호운용성 시험 방법에 대한 연구의 방향을 설정하고, 상호운용성 시험 방법 및 체계를 마련하여 표준안을 제안한다. 본 논문은 상호운용성의 분류, 상호운용성 시험 구조, 상호운용성 시험 절차에 관한 내용을 포함한다.
메가이벤트를 통한 도시재생 사례분석 - 부산 국제영화제를 중심으로 -
손다은(Son, Daeun),유지원(Ryu, Jiwon),주범(Chu, Beom) 대한건축학회 2022 대한건축학회 학술발표대회 논문집 Vol.42 No.2
Events or festivals are the means that can bring out economic effects in the shortest time among local revitalizations. Therefore, at the national level, attempts to hold events on an international or large scale with cities, provinces, and regions for balanced regional development are increasing. These large-scale events are being used as a means of urban regeneration in underdeveloped areas. Therefore, this study aims to examine the theory of urban marketing through events and to suggest the development direction of the city centering on cases.
민서연(Min, SeoYeon),유지원(Ryu, JiWon),주범(Chu, Beom) 대한건축학회 2023 대한건축학회 학술발표대회 논문집 Vol.43 No.1
The environment of working spaces impact of those spaces on the atmospheric environment were identified, and i investigated the factors that could be major factors in creating green architecture in Korea. In comprehensively evaluating related factors, materials and technology systems that can be introduced into existing office spaces or newly constructed buildings are proposaled through case studies of office spaces and buildings in the United States, a country that operates LEED, the most prestigious certification system.
노후도로 재정비 사례를 통한 입체적 도심 구축계획 - 지상 도로 지하화를 중점으로 -
이시원(Lee, Si-Won),유지원(Ryu, Jiwon),주범(Chu, Beom) 대한건축학회 2023 대한건축학회 학술발표대회 논문집 Vol.43 No.1
As the population increases, so does traffic. This is expected to lead to a sharp increase in the number of roads on the ground. To this end, the government will remove and remodel old roads in the past and turn them into underground, thereby creating parks and green spaces for citizens to restore the disconnection of the city center and improve the quality of urban infrastructure. Furthermore, by undergrounding the roads, the city becomes three-dimensional, and it is expected to create a walking space and a public space.
콘셉시온 머라이어 카밀(Concepcion, Mariah Camille),유지원(Ryu, Jiwon),주범(Chu, Beom) 대한건축학회 2022 대한건축학회 학술발표대회 논문집 Vol.42 No.2
The study aims to explore the possibilities of a new space through the concept of an existence of various afterlife dimensions based from David Eaglemans book on his philosophy on Possibilianism, Sum: Forty Tales from the Afterlives. The study invites the interference of disciplines outside of architecture as an attempt to involve them in the design process, thus, forming new directions, ideologies, and methods of translation within the field. It aims to create an approach that values hybrid notions of materializing the intangible while still grounding its output on poetics. It aims to ask a question: How can architecture convert the unthinkable into terms that can be conceptualized? How can the exploration of the afterlife realm create new fictional processes, typologies, programs, and formal conventions in architecture?
도심지 가로등 조명 요소가 야간보행에 미치는 영향에 관한 연구
멜레세 페벤 메쿠리아(Melese, Feven Mekuria),유지원(Ryu, Jiwon),주범(Chu, Beom) 대한건축학회 2023 대한건축학회 학술발표대회 논문집 Vol.43 No.1
This study aims to determine how the Lighting Elements of Street Lights can affect the nighttime movement of pedestrians in the urban environment by studying the factors that result in movement direction. Based on the reviewed literature the concept and standards of street light were pointed out and the Gestalt theory of human visual perception was studied. Based on that, the relationship between street lights and pedestrians’ movement diction was formulated to analyze selected cases. Through the case analysis, it is indicated that light intensity, direction, and color are the major factors of light that impact movement decisions by creating various reactions toward the pedestrian.
농촌 도시이민자가 직면한 문제 해결 방안 - 아디스아바바 에티오피아를 중심으로 -
멜레세 페벤 메쿠리아(Melese, Feven Mekuria),유지원(Ryu, Jiwon),주범(Chu, Beom) 대한건축학회 2022 대한건축학회 학술발표대회 논문집 Vol.42 No.2
Among the biggest challenges Addis Ababa, the capital city of Ethiopia facing today, dynamic increase of population is the major one. As a cause, rural-urban migration contributes significantly to this scenario. This uncontrolled flow of citizens from peripheral areas to the inner city cores resulted in saturation and overflow which led to decreased job opportunity and substandard living condition. In this condition, migrants from the working age group can fight their way in to the system while the rest will be cast outs. The main goal of this thesis research is to look in to alternative ways of how to make the cast out group (single mothers and children in this case) a productive citizen by interventions on basic skill development and capacity building.
콘셉시온, 머라이어 카밀(Concepcion, Mariah Camille),유지원(Ryu, Jiwon),주범(Chu, Beom) 대한건축학회 2023 대한건축학회 학술발표대회 논문집 Vol.43 No.1
In recent times there has been an increased appreciation for urban rooftops to be used as an alternative to restore the social dimension in our cities. However, despite the increased trend to explore rooftops, its potential is yet to be defined. The study examines roof spaces as an opportunity to construct a new urban layer that allows for complex functionality in underutilized or single-use areas of the city. The methodology focuses on cultural urban regeneration strategies as a basis for its case study analysis, which was then summarized according to their respective characteristics, roof typology, its effects, and limitations. In conclusion, the study aims to investigate the possibility that roof spaces can provide urban porosity and enhance cultural and social involvement despite the vertical development of cities.