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박인근(In Geun Park),김수동(Soo Dong Kim) 한국정보과학회 2004 정보과학회논문지 : 소프트웨어 및 응용 Vol.31 No.6
소프트웨어의 개발 생산성 향상과 고품질의 소프트웨어 생산을 위해서 현재 컴포넌트 기반 개발(CBD)이 보편화되고 있다. 이러한 CBD는 소프트웨어의 재사용성을 높여 주며 개발기간 단축과 개발비용의 절감을 가져오고 있다. 이러한 장점 때문에 산업계에서는 많은 부분을 컴포넌트로 만들려고 노력하고 있다. 그러나, 만들어진 소프트웨어 컴포넌트에 대해서 얼마나 품질이 좋은지, 또한 얼마나 재사용성이 있는가에 대한 검증은 아직 미흡한 상태이다. 본 논문에서는 만들어진 소프트웨어 컴포넌트에 대한 품질중 재사용성을 측정하는데 필요한 측정 방법을 제공한다. 재사용성의 측정 방법은 크게 간접적인 측정 기준과 직접적인 측정 기준으로 구분한다. 직접적인 측정 기준은 컴포넌트를 구성하는 클래스들과 컴포넌트의 인터페이스들을 조사해서 얻을 수 있는 방법을 말하는 것으로 컴포넌트의 크기, 복잡도, 결합도, 응집도 등을 측정한다. 간접적인 측정 기준은 이러한 직접적인 측정기준을 가지고 측정이 되는 기준으로서 이해도, 적용가능성, 수정가능성, 모듈화가능성이 있다. 이러한 간접적인 측정은 궁극적으로 재사용성의 측정에 사용이 된다. 이러한 직접적인 측정기준과 간접적인 측정을 이용해서 재사용성에 대한 측정을 해본 결과 소프트웨어 컴포넌트의 품질이 향상되면서 측정값이 재사용성에 도움을 주는 방향으로 변화하는 것을 확인 하였다. Component Based Development(CBD) Methodology is widely used in software development lifecycle to improve software quality. The Component Based Development(CBD) results to improve software reusability and reduce development term and cost. For this reason, lots of Enterprises are trying to make their processes to components. But, there has been few quality assurance or reusability testing action to those components. Most software component users can not know how their components are reusable and what extent their components satisfy to their quality requirements. For this reason, this paper suggests that software components can be measured their reusability by metrics proposed by this paper. We propose that in measuring software component reusability, there are direct metrics and indirect metrics. The results made by direct metrics are suggested to measure indirect metrics, so results to obtain reusability metrics.
박인근 韓國生物敎育學會 1994 생물교육 Vol.22 No.1
This report aims to suggest that we use as science teaching material banana which is easily obtainable for the promotion of learning effect. The reasons are 1. Since banana's fleshy cells are comparatively large, it is very convenient to observation of every object needed for the experiment. 2. The use of banana enables us to be free from the complicated skills of making microscope slide. 3. Banana serves as a good material for detecting nutrient. 4. Banana is a good example of modified berry and lacks seeds. 5. Banana can be used for experiment of enzyme activity. The present writer recommend to use banana as multiple teaching material to make the student enjoy the sense of achievement.
박인근 충북대학교 과학교육연구소 1989 과학교육연구논총 Vol.6 No.1
The ups and downs of a nation depends upon its educational power, and the speed of development of nation lies also in the quality of its education. Nowadays all nations are going their best for the development of their country in bringing up available manpower rather than developing their natural resources. Especially, one of the developing countries like Korea, which is poor in its natural resources, has to focus its efforts on the development of scientifically competent and creative manpower. Therefore, we should guide the children to develop familiarity with nature,and a logical and objective grasp of natural facts and phenomena through observation and investigation to deepen the understanding of nature and, to cultivate scientific attitudes and skills. It is, therefore, necessary to : 1. Guide them to enjoy their natural environments from as early as possible. 2. Guide them to study natural facts and phenomena closely related to each other and to understand the properties of substances and functions of their changes. 3. Guide them to cultivate their abilities for thinking of the causes and results of natural facts and phenomena, and for quantitative treatment, and to cultivate and attitude for the study of nature as a whole. 4. Guide them to be honest. 5. Guide them to cultivate their habit of recording precisely along with what have observed and investigated.