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데이터 센터 Outsourcing에 있어서 기기 운영비요의 산정 방법에 관한 연구
황경태,권오훈,Hwang, Kyung-Tae,Kwon, Oh-Hun 한국정보처리학회 1997 정보처리학회논문지 Vol.4 No.6
본 연구는 데이터 센터 Outsourcing에 관련된 비용 중에서 가장 산정하기 복잡하고 곤란한 기기 운영 비용을 합리적으로 산정할 수 있는 방법을 제시한다. 이를 위해서 Outsourcing 관련 문헌 조사를 통해 Outsourcing 비용 산정의 기본적인 개념을 정립하고 실제적인 Outsourcing 사례를 분석하여 기기 운영 비용을 합리적으로 산출할 수 있는 새로운 방법을 제시한다. 그리고 제시된 비용 산정 방법은 기존 방법과의 정량적인 비교 분석을 통하여 타당성을 검증하고 고객사의 담당자들을 대상으로 설문조사를 실시하여 새로운 비용 산정 방법의 합리성과 유용성을 실증적으로 검증한다. The major objective of this study is to propose an estimation method for the equipment operating cost in the data center outsourcing situation. To accomplish the objective, the fundamental concepts about the outsourcing pricing is first established by analyzing the previous research in this area. Then an actual case of data center outsourcing is evaluated. Based on the conceptual model and the actual case, a new method is proposed. Validity of the proposed method is verified by the quantitative comparison with the previous method. Reasonability and usefulness of the method were evaluated through the customer survey.
데이터 센터 Outsourcing에 있어서 기기 운영비용의 산정 방법에 관한 연구
황경태(Hwang Kyung Tae),권오훈(Kwon Oh Hun) 한국정보처리학회 1997 정보처리학회논문지 Vol.4 No.6
The major objective of this study is to propose an estimation method for the equipment operating cost in the data center outsourcing situation. To accomplish the objective, the fundamental concepts about the outsourcing pricing is first established by analyzing the previous research in this area. Then an actual case of data center outsourcing is evaluated. Based on the conceptual model and the actual case, a new method is proposed. Validity of the proposed method is verified by the quantitative comparison with the previous method. Reasonability and usefulness of the method were evaluated through the customer survey.
급성 신우신염과 방광요관역류에서 99mTc-DMSA Scan 의 유용성
박경호(Kyung Ho Park),이경일(Kyung Yil Lee),이형신(Hyung Shin Lee),김상용(Sang Yong Kim),한지환(Ji Whan Han),이익준(Ik Jun Lee),황경태(Kyung Tae Hwang),강시원(Si Won Kwang) 대한신장학회 2001 Kidney Research and Clinical Practice Vol.20 No.2
N/A During a 4 year period, 118 children(62 boys) below 14 years of age(median 2.9±2.7 years) with symptomatic urinary tract infection were studied by (99m)Tc-dimercaptosuccinc acid scintigraphy(DMSA scan), ultrasonography and voiding cystoureterography(VCUG). The male to female ratio was 1.1: 1, and 2.4: 1 under 1 year of age, and 0.54: 1 above 1 year age, respectively. Forty-seven patients presented with positive urine cultures and 71 were negative. DMSA scan was performed in 108 patients, and showed abnormalities in 50(46.3%) of them. Renal scars were observed in 24(51.0%) of 47 patients with positive urine culture and 26(42.6%) of 61 patients with negative urine culture, however there was no statistical difference between the two groups. Of the 118 patients VCUG was performed in 92 patients. Vesicoureteral reflux was found in 29(31.5%) of them. VURs were found in 25(50.0%) of 50 patients with positive and 4(9.6%) of 42 patients with negative findings in DMSA scan. Also, DMSA scan demon-strated scarring in 1164.7%) of 17 renal units with grade I-II, 12(92.3%) of 13 renal units with grade III, and 9(90.0%) of 10 renal units with grade IV-V. The incidence of positive findings in DMSA scan was higher above grade III. VURs were found in 21 (52.5%) of 40 patients with abnormal findings in ultrasonography and 8(15.3%) of 52 patients with normal findings. Ultrasonographic findings were abnormal in 29(58.0%) of 50 patients with positive findings in DMSA scan and were normal in 47(81.0%) of 58 patients with negative findings. Our study shows that DMSA scan is useful in the diagnosis of acute pyelonephritis and detection of VUR. It is advisable that DMSA scan should be included as an initial evaluation tool for symptomatic urinary tract infection in children and used as a follow-up tool.
제조 분야 사이버 물리 시스템(CPS) 연구 동향 분석
강형묵 ( Kang Hyung-muck ),황경태 ( Hwang Kyung-tae ) 한국정보화진흥원 2018 정보화정책 Vol.25 No.3
본 연구의 목적은 국내 및 해외 공히 국가 차원에서 중요한 혁신 의제로 추진하고 있는 제 4차 산업혁명, 인더스트리 4.0, 스마트 제조 등에서 중요한 위치를 차지하고 있는 사이버 물리 시스템(Cyber Physical System: CPS) 분야의 연구 동향을 분석하고, 향후 연구 방향을 제시하는 것이다. 본 연구에서는 (1) 인더스트리4.0과 스마트 제조의 개념, CPS의 기본 개념과 역할 등을 정리하고, (2) 이 분야의 문헌을 분석하여 향후 연구 방향을 제시할 수 있는 분석 기준들을 설정하고, (3) 제조 CPS 관련 주요 연구 결과를 분석하고 향후 연구 방향을 제시한다. ‘구글 학술검색’을 통해서 식별된 2013년부터 2017년까지 발간된 제조 CPS에 대한 74 개의 해외 문헌과 8개의 국내 문헌을 분석한 결과를 정리하면 다음과 같다. (1) 기존에 제시된 다양한 관점의 방법론과 프레임워크를 바탕으로 제조 CPS분야에 대한 공통의 방법론과 프레임워크를 제시하는 연구가 필요하다. (2) 제조 CPS 분야의 성숙도를 높이기 위해서는 기존의 시스템을 포함하여 CPS 시스템을 실제로 구현하고 운영하는데 관한 연구가 필요하다. (3) 제조 CPS 시스템을 진단하고 개선 방향을 제시할 수 있는 진단 방법론에 관한 연구가 필요하다. (4) 세부 모델 및 툴 측면에서는 CPS의 특성을 감안한 SCM 및 생산계획 모델과 인간·기계 협업에 관한 연구에 대한 강화가 필요하다. The purpose of this study is to analyze the research trends and present future research directions in the field of Cyber Physical System (CPS), a key element in the 4th Industrial Revolution, Industry 4.0, and Smart Manufacturing that are currently promoted as important innovation agenda both at home and abroad. In this study, (1) the concepts of industry 4.0, smart manufacturing and CPS are summarized; (2) analysis criteria of these fields are established; and 3) analysis results are presented and future research direction is proposed. 74 overseas and 8 domestic literature on manufacturing CPS from 2013 to 2017 are identified through 'Google Scholar Search'. Major results of the analysis are summarized as follows: (1) research on a common methodology and framework for the manufacturing CPS needs to be done based on the analysis of the existing methodologies and frameworks of various perspectives; (2) in order to improve the maturity of the manufacturing CPS, it is necessary to study actual deployment and operations of CPS, including the existing systems; (3) it is necessary to study the diagnostic methodology that can evaluate manufacturing CPS and suggest improvement strategy; and (4) as for the detailed model and tool, it is necessary to reinforce research on SCM·production planning and human-machine collaboration while considering the characteristics of CPS.
개발 성공요인을 적용한 네트워크 보안 시스템 개선에 관한 연구
김종선(Chong Sun Kim),황경태(Kyung Tae Hwang) 한국데이타베이스학회 2007 Journal of information technology applications & m Vol.14 No.4
This study proposes a method to improve network security systems based on critical success factors for systems development. To accomplish the research objective, the study analyzes required functions of network security systems and reviews existing methods to improve network security systems. Based on the analyses and literature review, critical success factors for development of network security systems are identified and a new method to improve network security systems based on the critical success factors is proposed. The proposed method to improve network security systems is based on utilizing multi-core processors. A prototype is developed and validated. This study will provide a good case in the network security area where research incorporating both engineering and management disciplines lacks.
ITSM 정착을 위한 6시그마 활용 방안에 관한 연구 : 서술적 사례 연구
박규리(Kyuri Park),황경태(Kyung Tae Hwang) 한국데이타베이스학회 2009 Journal of information technology applications & m Vol.16 No.2
Recently, as the importance of IT management is increasing, many companies have adopted ITSM(IT Service Management) as a solution to various IT management issues. In addition, some advanced companies are using 6 Sigma technique in their implementation of ITSM. The main purpose of this study is to analyze critical success factors of 6 Sigma in applying to the implementation of ITSM. For a case company, which is known to be successful in applying 6 sigma in its implementation of ITSM, six critical success factors were analyzed. The factors include leadership of CEO, capability and level of 6 Sigma belts, management of accurate data, building organizational systems, training and education, and evaluation and incentive. The results of the study are expected to be used as an useful information for companies to apply 6 Sigma in the implementation of ITSM.