C++ 프로그램의 이해도 증진을 위한 역공학 시각화 도구

문양선(Yang-Sun Moon),김재웅(Jae-Woong Kim),조혜경(Hye--Gyung Cho),유철중(Cheol-Jung Yoo),김용성(Yong-Sung Kim),장옥배(Ok-Bae Chang) 한국정보과학회 1995 정보과학회 컴퓨팅의 실제 논문지 Vol.1 No.2

이 논문은 캡술화, 상속성, 그리고 다형성이 객체 지향 프로그램의 분석과 이해를 어떠한 면에서 어렵게 하는지를 C++ 예제 프로그램을 통해 구체적으로 설명한 후, C++ 프로그램의 분석과 이해 증진을 위해 개발한 시각화 시스템을 소개한다. 이 시스템은 이미 개발된 시스템에 몇 가지 기능을 첨가한 것으로서 시스템의 주된 기능은 다음과 같다. (1) 프로그램의 복잡도를 자동적으로 측정한다. (2) 객체 지향 설계 및 프로그래밍에관한 지침을 보여준다. (3) 모듈(클래스와 함수)들의 원시 코드를 추적한다. (5) 메시지 전달 경로 그래프(함수 호출 경로 그래프)를 보여준다. (6) 모듈간의 관계 그래프를 보여준다. This paper explains concretly through C++ program in which respect encapsulation, inheritance and polymorphism make object-oriented programs difficult in analysing and understanding program, and introduces a visualization tool developed for the enhancement of analysis and understanding on C++ programs. The tool has been added some kinds of functions to our previous work. The main functions of the tool : (1) measure the complexity of a C++ program automatically, (2) introduce a guideline for the object-oriented design and programming, (3) trace the source code of modules( classes and functions), (4) display the path graph of message passing( function call path graph), (5) display the relationship graph between functions.

인지심리 이론을 반영한 객체지향 설계 및 프로그래밍 스타일 지침

문양선(Yang-Sun Moon),유철중(Cheol-Jung Yoo),장옥배(Ok-Bae Chang) 한국정보과학회 1998 정보과학회논문지(B) Vol.25 No.3

여러 연구에서 제안된 대부분의 객체지향 설계 스타일 지침들은 정성적인 것들이다. 그러므로 그것들을 객체지향 개발의 설계 단계에 적용시키기가 어렵다. 본 논문에서는 품질 좋은 객체지향 소프트웨어의 개발을 돕기 위한 정량적인 설계 및 프로그래밍 스타일 지침들을 제안한다. 제안된 지침들은 인지심리 이론에 바탕을 두었으며, 객제지향 소프트웨어의 성분들(메소드, 클래스, 메시지, 클래스 상속 구조)의 구성 및 성분들간의 관계에 관한 것들이다. 이 지침들은 인지심리 이론 중 널리 알려진 7±2 청크(chunks) 이론과 학생들을 대상으로 행한 인지 실험의 결과인 내포구조의 한계 수 3으로부터 유도되었다. 본 논문에서 제안한 지침들의 타당성을 확인해 보기 위하여 크고 작은 55개의 C++ 프로그램을 선정하여 실험적인 분석을 하였는데, 선정된 프로그램들은 여러 텍스트와 잡지에서 C++ 프로그래밍의 유용성을 보이기 위하여 작성된 것들이다. 이러한 실험적인 분석을 통해서 실험 대상 프로그램들의 대부분이 제안한 지침들을 만족하는 것으로 나타났다. 제안된 지침들은 객체지향 설계 및 프로그래밍 프로세스에서 품질 좋은 소프트웨어 개발을 위한 지침으로 사용될 수 있을 것이다. Most of the object-oriented design style guidelines suggested in several works are qualitative guidelines. Therefore, it is difficult for them to be applied to the design phase of object-oriented development. This paper suggests the quantitative design and programming style guidelines to help the development of object-oriented software of good quality. These, based on cognitive psychology theories, are guidelines about the construction of components(methods, classes, messages, and class inheritance hierarchy) and the relationship of inter-components of object-oriented software. These guidelines were derived from the magic number 7±2 chunks theory of cognitive psychology theories and the limited number 3 of nested structure obtained in our cognitive experiment for 38 graduate students. We experimented with the small and large 55 C++ programs to show the adequacy of the presented guidelines Most of the programs, selected in the texts and magazines, were presented to cite the usefulness of C++ programming. Through experimental analysis, we realized that most of the analyzed programs follow our guidelines, and that the proposed guidelines can be utilized as guidelines of object-oriented design and programming process.

C + + 프로그램의 유지보수 지원 시스템 개발

문양선(Moon Yang Sun),장근실(Jang Gun Sil),유철중(Yoo Cheol Jung),장옥배(Chang Ok Bae) 한국정보처리학회 1998 정보처리학회논문지 Vol.5 No.7

This paper introduces a maintenance support tool for C program. The tool was extended by adding a documentation supporting tool(DT) and an OOD/OOP style guidelines supporting tool(OOD/P-GT) to previous work results, the complexity measurement tool(CT) and the visualization tool(VT). The tool was named C -MT. For the extention, we studied a documentation method of object-oriented programs, analyzed and grouped the OOD/OOP style guidelines suggested in some works. The DT developed in this paper helps programmer understand, change, and test programs, and also extract the reuse components. OOD/P-GT provides guidelines for improve program quality.

객체지향 설계 및 프로그래밍 지침의 적합성 분석

문양선 ( Yang-sun Moon ) 한국고등직업교육학회 1999 한국고등직업교육학회 학술대회 논문집 Vol.1999 No.11

Since most of the object-oriented design guidelines suggested in the several works are abstractive, it is difficult to directly apply to the design phase of object-oriented program development. This paper describes on applicability experiments carried out to set the concrete guidelines appliable at the development phase by analyzing several types of object-oriented programs. The purpose of this work is to help the development of high quality object-oriented software.

객체지향 소프트웨어의 설계 스타일 지침을 기반으로 하는 객체점수 척도

유철종(Yoo Cheol Jung),장옥배(Chang Ok Bae),문양선(Moon Yang Sun) 한국정보처리학회 1998 정보처리학회논문지 Vol.5 No.10

Object-oriented software metrics must reflect overall object-oriented characteristics including the size and structure of objects and the relation among them. This paper determines four object-oriented paradigm related features(factors) that affect the size and complexity of an object-oriented software and suggests object-point metrics for software quality measurement based on the object-oriented design style guidelines. The guidelines, added a new one to the existing guidelines, were proposed by applying the chunk theory of cognitive psychology. The suggested metrics were verified by experimental method. The experimental verification evaluates whether the suggested metrics reflected overall object-oriented concepts and characteristics. In this experiment, two C programs that output same result are compared by measuring with the suggested metrics. As the result, the usefulness of the suggested metrics was verified.

화피, 석류피, 염부수백피 추출물의 항산화 및 항균 효과

김왕인 ( Wang In Kim ),김지은 ( Ji Eun Kim ),이선희 ( Seonhee Lee ),문양선 ( Yang Sun Moon ),이숙희 ( Suk Hee Lee ),박수연 ( Soo Yun Park ),나창수 ( Chang Su Na ) 대한본초학회 2013 大韓本草學會誌 Vol.28 No.3

Objectives : This study was conducted to measure the antioxidative and antimicrobial activities of water- and ethanol-extracts from Betula platyphylla var. japonica, Punica granatum and Rhus javanica against various species of anaerobic bacteria. Methods : In order to evaluate the antioxidative and antimicrobial activities of water- and ethanol-extracts, DPPH radical scavenging and superoxide dismutase (SOD)-like activities were measured in various species such as Staphylococcus epidermidis, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Candida albicans and Propionibacterium acnes that induce skin inflammation. Also the total amount of phenol in each water- and ethanol-extract was measured to identify its role in the antioxidative and antimicrobial activities of water- and ethanol-extracts from Betula platyphylla var. japonica, Punica granatum and Rhus javanica. The antibacterial activity of the extracts was measured by confirming the lowest concentrations in disk diffusion and minimum inhibitory concentration (MIC) tests. Results : It was observed that RJE (Rhus javanica-EtOH extracts) show the highest content of total phenol. In addition, for RJE the total phenol content was higher from samples taken from domestic sources than from samples taken from foreign sources. DPPH radical scavenging activity was increased by treatment with PGE (Punica granatum-EtOH extracts), RJE and RJW (Rhus javanica-water extracts). It was observed that SOD-like activity was highest in the treatment with PGE. All of the extracts showed antimicrobial activity on S. epidermidis, S. aureus, P. acnes and E. coli, including those from Punica granatum, and it was noted that the activity was higher with RJE than with RJW. Conclusions : These results provide evidence that ethanol extracts of Punica granatum and Rhus javanica may have a beneficial role as antioxidants and antibiotics. Extracts from domestic samples of Betula platyphylla var japonica appeared to have a greater efficacy than extracts from foreign samples.