정보 구조 모델링에 의한 시스템 분석

박재년 淑明女子大學校 1993 論文集 Vol.33 No.-

There are many strategies. tools and methods to analyze a software system. The classic process oriented water fall model which is widely used produces too large amount of documents to understand and maintain effectively. The data flow oriented structured analysis methods which is developed by Yourdon, et al. produce simple and understandable data flow diagram, but it takes too much time at the analysis phase for the user to wait to receive the built system and it is difficult to transform the structured specification to structured design. The object oriented analysises have widely spreaded for the last few years and will be used extensively in software engineering area, but it is very difficult to diffine objects and their operations. In this paper a new analysis method which is basically data structure oriented, is proposed. This information structure diagram gives the users and developers a meaningful data structures and its contents which can be easily constructed and verified by users. This model shows main object and subobjects which are made of event objects and subordinate objects. Because each object is presented directly by 3rd normal form, tole operations on objects and subobjects can be clearly defined by users or developers and may be implemented by such as 4th generation languages and processed by meta DBMS query languages. The procedures to derive the information structure diagram are described are described and a simple example of a university administration system is presented. The conclusions with some future studies are discussed.

SALL4 Expression in Hepatocellular Carcinomas Is Associated with EpCAM-Positivity and a Poor Prognosis

Park, Hyunjin,Lee, Hyejung,Seo, An Na,Cho, Jai Young,Choi, Young Rok,Yoon, Yoo-Seok,Han, Ho-Seong,Park, Young Nyun,Kim, Haeryoung The Korean Society of Pathologists and the Korean 2015 Journal of Pathology and Translational Medicine Vol.49 No.5

<P><B>Background:</B></P><P>There is increasing interest in hepatocellular carcinomas (HCC) expressing “stemness”-related markers, as they have been associated with aggressive behavior and poor prognosis. In this study, we investigated the usefulness of Sal-like protein 4 (SALL4), a recently proposed candidate marker of “stemness.”</P><P><B>Methods:</B></P><P>Immunohistochemical stains were performed for SALL4, K19, and epithelial cellular adhesion molecule (EpCAM) on tissue microarrays constructed from 190 surgically resected HCCs, and the results were correlated with the clinicopathological features and patient survival data.</P><P><B>Results:</B></P><P>Nuclear SALL4 expression was observed in 39/190 HCCs (20.5%), while K19 and EpCAM were expressed in 30 (15.9%) and 92 (48.7%) HCCs, respectively. The nuclear expression was generally weak, punctate or clumped. SALL4 expression was significantly associated with a poor overall survival compared to SALL4-negative HCCs (p = .014) compared to SALL4-negative HCCs. On multivariate analysis adjusted for tumor size, multiplicity, vascular invasion, and pathological tumor stage, SALL4 remained as a significant independent predictor of decreased overall survival (p= .004). SALL4 expression was positively correlated with EpCAM expression (p = .013) but not with K19 expression. HCCs that expressed both SALL4 and EpCAM were associated with significantly decreased overall survival, compared to those cases which were negative for both of these markers (p = .031).</P><P><B>Conclusions:</B></P><P>Although SALL4 expression was not significantly correlated with other clinicopathological parameters suggestive of tumor aggressiveness, SALL4 expression was an independent predictor of poor overall survival in human HCCs, and was also positively correlated with EpCAM expression.</P>

간의 선천성 담낭선종 -1예 보고-

고재향,박영년,정우희,박찬일 대한병리학회 1995 Journal of Pathology and Translational Medicine Vol.29 No.2

사용자 이벤트 기반의 정보구조 모델링을 이용한 비즈니스 업무 분석에서의 클래스 추출 방법

이혜선,박재년,Lee Hye-Seon,Park Jai-Nyun 한국정보처리학회 2005 정보처리학회논문지D Vol.12 No.7

Use case modeling is a widely used technique for functional requirements analysis of business system but it is difficult to identify a use cases at the right level and use case specifications are too long and confusing. It is also hard to determine a functional decomposition Phases·s of use cases. Therefore customer doesn't understand the use cases. This paper is defining concept of the Information Structure Modeling(ISM) and analyzing business system for the customer's perspective. ISM is an efficient mechanism for analyzing user requirements and for Identifying objects in a business system using Attribute Structure Diagram which is a major tool of the ISM that describes user event. This paper is also to show how the classes are classified and derived as event-asset-transaction type in ISM. It provides a user-friendly approach to visually representing business model. 비즈니스 시스템 분석을 위한 유스케이스 모델링은 유스케이스의 기능 별 분해 수준 및 시나리오의 구체적인 기술 단계를 어느 수준까지 작성해야 할 지 결정하기 어렵고 사용자가 분석 결과를 쉽게 이해하기가 어렵다. 본 논문에서는 비즈니스 시스템 분석 단계에서 사용자와 개발자 모두 쉽게 이해할 수 있는 표기법을 사용하여 사용자의 요구사항을 직관적으로 표현할 수 있는 정보구조 모델링을 정의하고, 객체 타입 별로 이벤트 객체, 재산 객체, 거래 객체로 분류 정의하여 추출하는 방법에 대해 제안함으로써 사용자의 요구사항 변경에 쉽게 대처하고, 개발자들이 분석 결과를 기반으로 설계를 위한 클래스 도출을 보다 용이하게 할 수 있도록 한다.

객체지향 설계의 특성을 고려한 품질 평가 메트릭스

김유경(Yu Kyong Kim),박재년(Jai Nyun Park) 한국정보처리학회 2000 정보처리학회논문지 Vol.7 No.2

There are many researches about metrics to measure a quality of Object-Oriented(OO) software. However, most of them have only discussed a concept or properties of metrics, and have not shown the detailed procedure for measuring them. They also define a measurement indicator as a threshold, but it has been influenced on a project size or application domains. In this paper, we propose metrics based on characteristics of OO design such as size, complexity, coupling and cohesion, and use a proportion to an average as the measurement indicator. It is easy to classify classes which have a result above the average, and to predict classes which reduced the quality of OO design. They will be modified to hold the average. Proposed metrics are analytically evaluated by Weyuker's nine properties. They are satisfied with seven properties except two properties do not apply to OO metrics. Also, we design a quality assessment system, ASSOD(ASsessment System of Object oriented Design), to measure the quality of the OO design independent of the platform.

IFM에 기반한 한글 질의 처리기의 설계와 구현

이서정(Lee Seo Jeong),박재년(Park Jai Nyun) 한국정보처리학회 1997 정보처리학회논문지 Vol.4 No.10

To assist the system development methodologies, there have been a lot of researches for treatment of natural language specification, which represents system behavior and user behavior. In this paper, we suggest Hangul Query Processor based on IFM(InFormation Modeling) which is one of the Object-Oriented software development methods. This Hangul query processor translates the Korean language specification to SQL and response query result. And it is designed to improve system usability by providing convenience to Korean language users. The advantages are The Hangul Query Processor affect higher system usability of and users in that it solves user''s Korean language specification without help of the expert. And the software development contained query processor has result to be more participation of users and to reduce the system development time.

사용자의 참여를 확장한 시스템 개발 방법의 설계

이서정(Lee Seo Jeong),박재년(Park Jai Nyun) 한국정보처리학회 1999 정보처리학회논문지 Vol.6 No.5

This paper suggests system development method with extended user participation. Context diagram, event diagram, information diagram, behavior diagram, management diagram and interface STD are staple products. This method introduces interface STD, management diagram and context diagram with administrator as relator. We adapted to research business of professor and ATM(Automatic Teller Machine), then it can be adaptable to business-oriented system.

간외담관 낭선종 ( Extrahepatic Biliary Cystadenoma )

강진경(Jin Kyung Kang),최흥재(Heung Jai Choi),박인서(In Suh Park),정재복(Jae Bock Chung),전재윤(Chae Yoon Chon),김원호(Won Ho Kim),박찬일(Chan Il Park),송시영(Si Young Song),박영년(Young Nyun Park),이경식(Kyoung Sik Lee) 대한소화기학회 1993 대한소화기학회지 Vol.25 No.3

Cystic tumor of the intra- or extra- hepatic bile ducts is a rare but distinctive neoplasm, similar to that occurring in the pancreas or ovary. The cystadenomas of the extrahepatic biliary tree are extremely rare, and most of them are usually intrahepatic, and rarely diagnosed preoperatively. We report a 63-year-old woman admitted because of intermittent abdominal pain for 1 month. Abdominal ultrasonography revealed a 2.5 cm hypoechoic oval mass with hyperechoic rim in dilatecl common hepatic duct and common bile duct. Abdominal computerized tomography revealed a hypodense mass surrounded by a thick dense outer rim. A 2.5*1.5 cm filling defect hanging from the right hepatic duct with a stalk was noticed on endoscopic retrograde cholangiography (ERC). Under the diagnosis of benign tumor originating from extrahep:,stic bile duct, laparotomy was performed. A 2.5* 1.8 * 0.6 cm mass, clinged with stalk from the right hepatic duct was noted and could be removecl by segmcntal resection of the common bile duct and the common hepatic duct. On cut section, greenisherous fluid containing multilocular cysts surrounded by a smooth wall with 0.3 cm thickness was seen. Microscopic findings revealed a cystadenoma lined by a single layer of columnar epitheliuni containing intracellular mucin pools without evidence of cellular atypism or mitosis.

컴포넌트 설계에 대한 응집도와 결합도 메트릭스

고병선,박재년,Ko, Byung-Sun,Park, Jai-Nyun 한국정보처리학회 2003 정보처리학회논문지D Vol.10 No.5

소프트웨어 개발의 독립성과 높은 생산성을 향상시키기 위한 재사용 기술로 컴포넌트 기반 개발 방법론은 널리 사용되게 되었다. 소프트웨어의 품질을 향상시키기 위해서는 측정 가능해야 하므로, 컴포넌트의 특성을 반영한 컴포넌트 메트릭스가 필요하다. 따라서 본 논문에서는 컴포넌트 기반 시스템의 컴포넌트 설계 정보에 기반한 컴포넌트 응집도와 결합도 메트릭스를 제안한다. 오퍼레이션이 컴포넌트의 서비스를 제공하기 위해 공통으로 사용하는 클래스에 대한 정보를 이용해 오퍼레이션 사용도를 구하고, 이를 통해 오퍼레이션 유사도를 구한다. 컴포넌트 응집도와 결합도는 오퍼레이션 유사도에 의해 계산되며, 컴포넌트 분석 단계에 추출 가능한 정보로부터 계산된다. 그리고 사례 연구를 통해 컴포넌트 메트릭스의 필요성을 객체지향 메트릭스와의 비교를 통해 살펴본다. The component-based development methodology becomes famous as the reuse technology for independence and productivity of software development It is necessary component metrics for component-based systems, because It should be measurable to improve the quality of the software. Hence, in this paper, we propose component cohesion and coupling metrics which is reflected in characteristics of component. The operation use value is calculated by the information of classes interface commonly uses to offer the component's service. And, the operation similarity value is calculated by the operations use value. Component cohesion and coupling is calculated by the operation similarity and based of the information which is extracted in the analysis phase. And, we examine the necessity of component metrics in comparison with object-oriented metrics.

악성종양 환자에서 발생한 Cytomegalovirus (CMV) 감염과 관련된 위궤양 2예

이상인,강진경,박인서,전재윤,박영년,박찬일,이현철,송시영,최흥재 대한소화기내시경학회 1992 Clinical Endoscopy Vol.12 No.2

In gastrointestinal tract CMV h&s been implicated in inducing mucosal inflammatory and ulcerative lesions. More recently, increasing number of,patients with CMV-associated gut lesions have been reported primarily in immunocompromisepatients or occasionally in normal hosts. The colon is the most comiman site of the infesaion. although it might occur in other gastrointeatinal tract such as esophagus, stomach, duodenum and terminal ileum. The dagnosis of CMV infection can often be difficult and musi:' await serological conversion or viral cultures. We report two patients of malignancy who had from gastric ulcer associated with CMV infection which showed characteristic histological findings of CMV infection in biopsied specimen and positive results of dot blot DNA hybridi2tion in paraffin-embedded biopsy tissue using cloned CMV probe which was prepared from a recombinant clone containing a CMV fragment at the BamHI site of pGEM-2 vector. Case 1:A 33-year-old man was admitted to our hospital due to epigastric pain for 1 month who have been diagnosed as having non-Hodgkin's lymphoma of neck l0 months earlier. Multiple retroperitoneai and paraceliac lymph nodes enlagement was noted on abdominal CT scan suggesting recurrence of lymphoma. On the I1 th hospital day sudden epigastric hunger pain and massive hematemesis developed and esophagogstroduodenoscophy(EGD) revealed a huge ulcerative lesion from the upper body to the antrum ong the lesser curvature of the stomach. The margin was smooth and the base was coated with whitish exudates and blood clots. t)n histologic examination of the biopy specimen taken by endoscopy at the ulcer margin showed characteristic CMV intranuclear inclusions and postive result could be obtained on dot-blot hybridization. Case 2:A 53-year-old man was admitted due to paraparesis for 14 days. A chest CT scan and whole body bone scan revealed a mass on epidural space of thoracic spine and multiple bony destruction on ribs suggesting rnetastatic cancer. An EGD performed for detection of primary site revealed a small ulcerative lesion on angle. The margin was inoath and the btise was even and coated with whitish-yellow exudates. On histologic exatninEtion of biopsuepd specimen showed characteristic inclusion bodies of CMV infection and on dot-blot hybridization positive result could be obtained.