거시구조 개념을 이용한 요구사항 분석과 Use-case 도출 방법

조용균,박용익,박용범,Cho, Yong-Kyun,Bak, Yong-Ik,Park, Young-Bom 한국정보처리학회 2011 정보처리학회논문지D Vol.18 No.6

소프트웨어의 규모가 커지고 다양해짐에 따라 고객이 원하는 요구사항을 정확하게 이해하여 표현하는 것의 중요성이 강조되고 있다. 특히 개발 초기에 요구사항은 추상적이고 개념적이기 때문에 핵심적인 시스템의 요구사항을 도출해서 명세하는 작업은 쉬운 일이 아니다. 기술적인 측면에서 이론적으로 다양한 분석과 검증기법이 소개되고 있지만 실무적으로는 요구사항을 명확하게 도출하기 힘들다. 본 논문에서는 고객이 원하는 요구사항을 명확하게 도출하기 위해, 텍스트언어학(textlinguistics)의 거시구조 개념을 이용한다. 먼저, 서술적으로 명세 된 요구사항을 텍스트언어학(textlinguistics)의 거시구조로 분석하였고 다음으로 거시규칙을 적용하여 거시명제를 도출하여 요구사항을 명확히 정의하도록 하였다. 마지막으로 도출된 거시명제를 이용하여 Use-case Model로 문서화하는 방법을 제시하도록 한다. As software is varied and grew in size, the importance of clear understanding and representing customer's need, has been emphasized. It is not easy to drive and define critical system needs, since requirements in early stage of the development, is and conceptual. Technical perspective view, Several theoretical analysis methods and validation techniques are introduced, but in practice, it is hard to drive clear customer's requirement. In this paper, to drive clear customer's requirements, Macrostruktur concept of textlinguistics is used. First, Macrostruktur of textlinguistics is used to analysis descriptive requirements. Second, Macrostruktur-rule is applied to analyzed Macrostruktur data in order to derive Macrostruktur-propositions. Finally, it is proposed to generating Use-case model using derived Macrostruktur-propositions.

황산욕에서 아연도금강판의 품질에 미치는 Pb 의 영향

조용균,김영근 ( Yong Kyun Cho,Young Geun Kim ) 한국부식방식학회 1998 Corrosion Science and Technology Vol.27 No.2

논문 : 표면처리 ; 아연-철 합금도금강판의 인산염처리성에 미치는 Cu-Flash처리의 영향

조용균 ( Yong Kyun Cho ),김영근 ( Young Geun Kim ) 대한금속재료학회 ( 구 대한금속학회 ) 1998 대한금속·재료학회지 Vol.36 No.7

Bus makers have applied Zn-Fe coated steel sheet to bus outer bodies because of its high corrosion resistance. But it was difficult for the makers to phosphate the bus bodies by themselves because the size of bus body was too big to immerse it in phosphating bath. Therefore. the bus makers have required steel makers to provide Zn-Fe coated steel sheet that was phosphated directly in EGL(Electro-Galvanizing Line). But it was also found to be difficult that Zn-Fe electroplated steel sheet was phosphated in the high speed continuous EGL. because the phosphating time in the process was too short to complete the phosphating reaction. It was observed on this process that the Zn-Fe coated steel sheet could be phosphated perfectly even in as short reaction time-about 3~7 seconds-as EGL by precipitating copper on it before phosphating. Precipitating copper on Zn-Fe coated steel sheet was carried out by dipping the steel sheet for 3~7 seconds in copper solution of about 0.5~1.0g/l concentration. This method. reducing phosphating time by precipitating copper on Zn-Fe coated steel sheet before phosphating was named as Cu-Dash treatment.

배변 자세에 따른 배변조영술에서의 항문직장각 및 회음하수의 변화

조용균 ( Yong Kyun Cho ),김창섭 ( Chang Seop Kim ),구은실 ( Eun Sil Koo ),윤중원 ( Jung Won Yun ),김정욱 ( Jeong Wook Kim ),이준행 ( Jun Haeng Lee ),박창영 ( Chang Young Park ),손정일 ( Chong Il Sohn ),전우규 ( Woo Kyu Jeon ),김 대한소화기학회 2003 대한소화기학회지 Vol.41 No.3

Background/Aims: Pelvic floor location and mobility vary according to the defecation posture. Authors investigated possible effects of the change of defecation posture on the patients with pelvic outlet obstructive constipation among patients with chronic idiopathic constipation. Methods: Subjects included in the study were 32 patients with pelvic outlet obstructive constipation (24 spastic pelvic floor syndrome, 8 perineal descent syndrome). From all the subjects, defecographies of both resting and straining phases were obtained for three different postures (sitting, leg elevating and squatting). Results: In the patients with spastic pelvic floor syndrome, the anorectal angles of straining phase in squatting position were 117.93±3.58캻nd 118.2±4.94?respectively. These values were significantly greater than those measured in sitting position (resting 93.75±6.74?straining 95.17±7.77?and leg elevating position (resting 99.42±4.79?straining 98.67±5.76?(p<0.01, p<0.01, respectively). In addition, in the patients with perineal descent syndrome, perineal descent in squatting position revealed no significant differences compared with sitting and leg elevating positions. Conclusions: In patients with spastic pelvic floor syndrome, squatting position increases the anorectal angle. Although further studies are needed to support our ideas, this study demonstrates that patients with spastic pelvic floor syndrome can have benefit from the Korean traditional defecation posture by increasing the anorectal angle. (Korean J Gastroenterol 2003;41:190-195)

구 증권투자신탁의 여러 가지 문제

조용균(Cho Yong-Kyun) 한국법학원 2006 저스티스 Vol.- No.93

1998. 9. 16. 법률 제5558호로 개정되기 전의 구 증권투자신탁업법은 증권산업의 활성화를 위한 투자자 보호를 위하여 시장조성자로서 판매회사로 하여금 수익증권의 수익자가 환매권을 행사하는 경우 자신의 고유재산으로 환매에 응하도록 규정하는 한편 그 당시 아직 발달하지 않은 채권시장을 감안하여 환매가격을 시가가 아닌 장부가에 의하여 산정하도록 하면서 천재ㆍ지변ㆍ유가증권시장의 폐쇄ㆍ정지 또는 휴장 기타 부득이한 사유가 있는 경우에는 환매를 연기할 수 있도록 규정하였는바, 자기책임주의원칙 및 실적배당원칙 등을 지도원리로 하는 증권투자신탁제도의 본질에 비추어 보면 수익자의 환매권행사에 대하여 신탁재산에 편입된 채권의 매각대금으로 환매가격을 시가로 산정하여 지급하도록 규정하였어야 할 것이다. 그런데 위와 같이 정책적으로 판매회사의 고유재산으로 장부가에 의하여 환매가격을 산정하도록 함으로써 소위 대우채권과 같이 시가와 장부가에 괴리가 발생하는 사태가 발생하여 수익자의 환매권행사가 급증하자 금융감독위원회는 수익증권환매연기조치를 취하면서 장부가가 아닌 시가에 의한 환매가격의 산정을 승인하였고 결국 대법원도 금융현실을 감안하여 2003. 11. 28. 선고 2001다67171 사건을 필두로 위와 같은 금융감독위원회의 승인이 타당하다는 취지의 판시를 하였다. 그러나 위와 같은 대법원의 판시는 금융현실을 감안하였다는 점은 수긍할 수 있으나 결국 수익자가 행사하는 환매권의 법적 성질을 왜곡하고 사정변경에 의한 계약내용의 변경을 인정하며 그로 인하여 투자자의 신뢰를 보호하지 못하였다는 비난을 면하기 어렵다고 보아야 할 것이다.

Current and Future Management of Nonalcoholic Fatty liver Disease

조용균 ( Yong Kyun Cho ) 대한간학회 2018 간학회 싱글토픽 심포지움 Vol.2018 No.2

The prevalence of NAFLD (Nonalcoholic fatty liver disease) is continuously growing worldwide and becoming pandemic disease in concert with ongoing epidemics of obesity, diabetes, and metabolic syndrome. Especially, NASH (Nonalcoholic steatohepatitis) has a potential to progress to cirrhosis or hepatocellular carcinoma and increased risk of liver related morbidity and mortality. Current treatment of NASH relies on lifestyle interventions such as behavioral, dietary, exercise changes, but there is no pharmacologic treatment approved as yet. So, we need to develop newer and effective anti-NASH drugs. Over the last years, accumulated understandings of the mechanism in NASH progression found out new therapeutic potential targets. Numerous newer drugs development program for NASH are ongoing and still in early clinical phase. Potential therapeutic targets including modulation of nuclear transcription factors, targeting lipotoxicity, oxidative stress, energy homeostasis, cellular metabolism, and resolution of hepatic inflammation and fibrosis. However, ongoing studies assessing novel drugs for NASH are yet far from clinical use in real practice. Here we review the major mechanisms leading to progression of NASH and identify the most promising molecular targets for the treatment of this condition. Strategies selection of optimal therapeutic target molecule and development of newer drugs may enable us to individualized and tailored treatment in NASH patients in the near future.

비알코올성 지방간질환의 병발 질환

조용균 ( Yong Kyun Cho ),윤민용 ( Min Yong Yoon ) 대한내과학회 2010 대한내과학회지 Vol.79 No.5

Nonalcoholic fatty liver disease (NAFLD) is a wide spectrum of diseases that are ranging from simple steatosis to nonalcoholic steatohepatitis (NASH) and cirrhosis. NAFLD has been recognized as a hepatic feature of metabolic syndrome linked with insulin resistance. Recent evidence supports that NAFLD is associated with numerous systemic diseases such as cardiovascular disease, chronic kidney disease, type 2 diabetes, obesity, metabolic syndrome. Therefore, NAFLD should be newly considered not only an liver specific disease, but also early mediator of systemic metabolic disease. The underlying mechanism and pathogenesis of harmful effect of NAFLD on other medical disorders are yet to be fully understood and major questions remain that must be solved to decreased morbidity and mortality from the spectrum of NAFLD. So further research is needed for future therapeutic strategies of NAFLD. This review focuses on the relationship between NAFLD and various comorbid disease. (Korean J Med 79:490-494, 2010)

간성 당뇨병

조용균 ( Yong Kyun Cho ) 대한간학회 2011 Clinical and Molecular Hepatology(대한간학회지) Vol.17 No.2(S)

The liver plays a key role in the regulation of glucose metabolism because it is regarded as a critical target organ for insulin and a site for gluconeogenesis. Development of diabetes mellitus (DM) in patients with liver cirrhosis is result of hepatocyte dysfunction. Up to 30% of patients with liver cirrhosis have DM. DM developed as a complication of liver cirrhosis is known as "hepatogenous diabetes"(HD). Insulin resistance in liver and peripheral tissue and hyperinsulinemia is regarded as the pathophysiologic basis of diabetes in liver disease. An dysfunction of the islet β-cells of the pancreas to proper secrete insulin to supplement the impaired insulin action are also contributory factors. Non-alcoholic fatty liver disease (NAFLD), alcoholic liver disease, chronic hepatitis C (CHC) and hemochromatosis are more frequently associated with DM. DM is recognized risk factor for development and progression of chronic liver disease, liver cirrhosis, hepatocellular carcinoma (HCC). This article will review present conception in relation to the epidemiology, pathophysiology, clinical implication and management of hepatogenous diabetes in various chronic liver diseases.

복부비만을 가진 한국인의 내장지방세포에서 Adipokine 발현이 비알코올지방간질환의 진행정도에 미치는 영향

조용균 ( Yong Kyun Cho ) 대한간학회 2008 추계 학술대회 Vol.14 No.-

Pharmacologic treatments are beneficial in NAFLD ? : Pro

조용균 ( Yong Kyun Cho ) 대한내과학회 2018 대한내과학회 춘계학술대회 Vol.2018 No.-

Lifestyle interventions including behavioral, dietary, exercise changes can lead to reduction of liver fat and improved glucose control and insulin resistance in Non alcoholic fatty liver disease(NAFLD) patients. Until now these approaches are mainstays in the treatment of NAFLD so far. Why should we placing a lot of hope on pharmacologic treatment? Here are couple of reasons why. First, there are lack of evidence in improving Non alcoholic steatohepatitis (NASH) histopathology by lifestyle modification. Second, NAFLD patients have low compliance with physical exercise since adherence to healthy behavior in their lifetime is difficult to achieve. For these reasons, we need to develop newer and effective anti-NASH drug in the near future.