• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2009년도 춘계학술대회
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• pp.281-294
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• 2009

Recently the information system introduction and the application which use the computer are increasing. The efficient operation of information system helps corporations to improve productivity, customer service and corporate competitive power. SaaS(Software as a Service), which is the developed type of outsourcing in the area of information technology, is to use standardized and packaged application by hosting from the outside of enterprise. SaaS is not developed yet as much as people's interest about that in the initial stage, but its related technology and service capacity are accumulated after repeated trial and error, and it's ready to activate the industry. In the area of information system, studies on the measurement of service quality were followed. But there is little study on service quality measurement in the field of SaaS(Software as a Service). The purpose of this study was to divides the SaaS with e-SERVQUAL and it consider the relationship with the perceived recognition and the usage intention. According to this, variables of traditional research were rejected because SaaS is not developed yet in Korea. But information had a strong effect on perceived recognition. Therefore, business related with in SaaS must have provided a correct information about various applications.

• 한국인터넷방송통신학회논문지
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• 제14권1호
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• pp.61-67
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• 2014

SaaS 클라우드 서비스는 사용자가 소프트웨어를 온라인 서비스로 이용할 수 있도록 클라우드 플랫폼에 배치되어 구동되는 모델을 의미한다. 본 연구에서는 SaaS 클라우드 서비스의 효율적인 개발을 위해 적합한 개발 방법론을 제안한다. 이를 위해 우선 국내 SaaS 클라우드 서비스 개발 업체들의 현황을 분석하여 개발 핵심 요소를 도출하고, 이를 토대로 기존 소프트웨어 개발 방법론 중에서 SaaS 클래스 서비스 개발에 가장 적합한 개발 방법론을 선정하여 테일러링 하였다. 그리고 제안한 개발 방법론의 적용가능성을 검증하기 위해 현재 SaaS 클라우드 서비스를 개발하고 있는 업체에 적합한 개발 방법론을 테일러링하는 사례 연구를 수행하였다.

• 인터넷정보학회논문지
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• 제12권6호
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• pp.53-62
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• 2011

본 논문은 3D SW와 같은 고사양의 SW를 서버 기반의 온라인 SW 서비스로 제공하기 위하여 GPU 가상화를 이용한 그래픽 분할 실행 방법에 대하여 소개한다. 이는 서버에서 SW 가상화 환경을 기반으로 실행되는 SW의 데이터 집중적인 작업은 서버에서 실행하고, 그래픽 작업들은 서버의 GPU를 이용하지 않고, GPU 가상화를 이용하여 클라이언트의 GPU에서 처리하여 SW를 서비스하는 방법이다. 이를 위하여 본 논문에서는 그래픽 정보의 클라이언트 렌더링을 API 리모팅을 이용하여 처리하는 방법에 대하여 제안한다. 또한, 제안된 방법이 화면 변경이 잦은 동적인 3D 그래픽을 사용하는 SW를 서버 기반의 온라인 형태로 서비스될 때, 우수한 성능을 보임을 알아본다. 또한, 다수의 클라이언트에게 분할 실행 SW 서비스를 제공함에 있어서, 서버의 부하를 줄이기 위하여 분할 실행 SW를 프로세스 단위로 가상화하고, 클라이언트의 설정 정보를 관리하여 서비스를 제공하는 방법에 대하여 기술한다.

• 정보처리학회논문지D
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• 제16D권1호
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• pp.123-132
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• 2009

국제적인 규제와 정부차원의 지원과 관리가 이뤄지고 있음에도 불구하고 일반기업 등에서는 여전히 소프트웨어자산에 대한 인식과 관리 소홀의 문제점을 안고 있다. 이는 관리해야 할 소프트웨어자산의 범위가 모호할 뿐 아니라 소프트웨어의 특성상 복사 및 설치가 쉽고 눈에 보이지 않아 관리 자체가 어렵기 때문이다. 즉 기업의 소프트웨어관리자는 구매부터 조달, 배포, 유지, 처분까지의 전체적인 소프트웨어 라이프사이클의 각 단계별로 수시로 변화되는 정보를 정확히 확인하고 관리하기가 쉽지 않다는 문제점이 있다. 따라서 본 논문에서는 이를 해결하기 위해서 개발된 점검용 시스템인 Inspector를 활용할 것을 제안한다. 제안된 점검서비스에는 패키지 소프트웨어의 특성을 고려한 검색기법이 구현되었고, 소프트웨어의 권리관리 정보를 표준화하였으며, 레지스트리 정보를 활용하였다. Inspector를 사용한 결과 PC 1대당 점검시간이 획기적으로 단축되었다. 이러한 효과 이외에도 소프트웨어를 효과적으로 관리함으로써 소프트웨어 구입비용을 절감할 수 있도록 지원하여 경영합리화에 이바지하는 것으로 나타났다.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2017년도 춘계학술발표대회
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• pp.721-724
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• 2017

Designing the User-Based Voluntary Service Recommendation Program proposed in this study was motivated by the fact that it is not easy for volunteers to find a place for their services. Even though there are many volunteer centers or organizations, volunteers often experience difficulty in where and how they should apply for their work as those places are not well promoted. Thus, this program has been designed by applying the mobile push services along with location technology. The authors plan to introduce the program to the public as an open source by implementing the program with both Android and Python - hoping that the program will be useful to the users and volunteer organizations.

• Computers and Concrete
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• 제4권1호
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• pp.1-18
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• 2007

Over the past decades, an enormous amount of effort has been expended in laboratory and field studies on concrete durability estimation. The results of this research are still either widely scattered in the journal literature or mentioned briefly in the standard textbooks. Moreover, the theoretical approaches of deterioration mechanisms with a predictive character are limited to some complicated mathematical models not widespread in practice. A significant step forward could be the development of appropriate software for computer-based estimation of concrete service life, including reliable mathematical models and adequate experimental data. In the present work, the basis for the development of a computer estimation of the concrete service life is presented. After the definition of concrete mix design and structure characteristics, as well as the consideration regarding the environmental conditions where the structure will be found, the concrete service life can be reliably predicted using fundamental mathematical models that simulate the deterioration mechanisms. The prediction is focused on the basic deterioration phenomena of reinforced concrete, such as carbonation and chloride penetration, that initiate the reinforcing bars corrosion. Aspects on concrete strength and the production cost are also considered. Field observations and data collection from existing structures are compared with predictions of service life using the above model. A first attempt to develop a database of service lives of different types of reinforced concrete structure exposed to varying environments is finally included.

• 정보교육학회논문지
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• 제25권4호
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• pp.621-632
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• 2021

본 연구는 예비교사를 대상으로 피지컬 컴퓨팅 교육을 온라인 환경에서 실행하기 위한 교육과정의 개발과 적용에 관한 연구이다. 먼저 ADDIE 교수설계 모형에 따라 15주 과정의 소프트웨어와 피지컬 컴퓨팅 교육과정을 설계하였다. 온라인에서 사용할 수 있는 도구로 스마트폰 기반의 EPL인 포켓코드와 그에 포함된 각종 센서를 사용한 프로그램을 주제로 교육을 실시하였다. 프로그램 적용 결과 예비교사들의 교수효능감은 개인효능감, 교수학적 지식, 테크놀로지 교수내용 지식, 결과 기대, 학생에 대한 신념이 모두 유의미하게 향상되었다. 소프트웨어 태도 부분은 소프트웨어 흥미와 소프트웨어의 가치 부분이 유의미하게 증대되었고 소프트웨어 공학자에 대한 인식은 변화가 없었다. 일반적으로 피지컬 컴퓨팅의 경우 조작 활동이 많이 들어가 온라인 환경에서 실행하기 어렵다. 해당 연구와 같이 비대면 환경 또는 블렌디드 환경에서 효율적인 교육을 지속할 수 있는 다양한 교육과정이 개발되길 기대한다.

• Journal of Ecology and Environment
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• 제45권4호
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• pp.255-263
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• 2021

Background: Ecosystem service mapping is an important tool for decision-making in landscape planning and natural resource management. Today, pollination service mapping is based on the Lonsdorf model (InVEST software) that determines the availability of nesting and floral resources for each land cover and estimates pollination according to the foraging range of the desired species. However, it is argued that the Lonsdorf model has significant limitations in estimating pollination in a landscape that can affect the results of this model. Results: This paper presents a free software, named PollMap, that does not have the limitations of the Lonsdorf model. PollMap estimates the pollination service according to a modified version of the Lonsdorf model and assumes that only cells within the flight range of bees are important in the pollination mapping. This software is produced for estimating and mapping crop pollination in agricultural landscapes. The main assumption of this software is that in the agricultural landscapes, which are dominated by forest and agriculture ecosystems, forest patches serve only as a nesting habitat for wild bees and the surrounding fields provide floral resources. Conclusion: The present study provided new software for mapping crop pollination in agricultural landscapes that does not have the limitations of the Lonsdorf model. We showed that the use of the Lonsdorf model for pollination mapping requires attention to the limitations of this model, and by removing these limitations, we will need new software to obtain a reliable mapping of pollination in agricultural landscapes.

• 산경연구논집
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• 제7권1호
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• pp.11-14
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• 2016

Purpose - The study aims to show the successful application of Six Sigma in software companies for process improvement. Research design, data and methodology - A mixed methodology has been used which include both qualitative and quantitative research. In the qualitative research methodology part, a detailed and comprehensive literature study have been carried out. The literature study consists of articles, books, web materials, discussion forms and others. In the quantitative research methodology part, interviews have been conducted. Results - Six sigma is the practical application of a theoretical statistical measurement that equates to 3.4 defects per million opportunities -a position of practically zero defects for any process or service. Initially originating in Motorola Inc. in 1985 as a response to drastic quality improvement pressures from the threat of Japanese competition, it quickly gained many followers particularly G.E., Allied Signal, Ford Motor Company etc. and more recently attentions have shifted to service environments. There are still some problems and misconceptions existed about the applicability of Six Sigma in software companies. Conclusions - The paper concludes that Six Sigma can bring large benefits for software companies too. Furthermore, software companies have already started to implement Six Sigma approach, like Ericsson, Tata Consultancy Service, etc.

• 한국멀티미디어학회논문지
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• 제25권8호
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• pp.1109-1121
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• 2022

As the demand for quality sleep increases in modern society, the importance of sleep technology has increased. Recently, development of sleep environment improvement products and research on the user's sleep improvement have been activated. Representatively, user sleep pattern analysis research is being conducted through the existing polysomnography, but it is difficult to use it in the sleep environment of daily life. Therefore, in this paper, we propose a system design that can provide a customized deep sleep service to users by detecting sleep disturbance factors in a motion bed environment. In order to improve the user's sleep satisfaction, a logistic regression-based sleep pattern analysis model is proposed and accuracy and significance are verified through experiments. And to improve user's sleep satisfaction, we propose a logistic regression-based sleep pattern analysis model and verify accuracy and significance through experiments. The proposed system is expected to improve the user's sleep quality and effectively prevent and manage sleep disorders.