• 한국콘텐츠학회논문지
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• 제11권5호
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• pp.93-103
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• 2011

현재, 도서관시스템의 소프트웨어 사용 방식은 클라이언트/서버 및 ASP 방식으로 서비스를 제공함으로써 하드웨어 및 소프트웨어 구매비, 설치 및 배포, Customization, Upgrade, 문제점 관리, 라이센스의 고비용 등 소프트웨어 전반에 걸쳐 관리가 힘들고 고비용의 문제점이 있다. 이러한 문제점을 해결하기 위해 SaaS 기반의 전자도서관시스템에서는 멀티테넌트 환경(SaaS 성숙도 레벨 3이상)에서 구현이 가능한 핵심요소들을 개발하였다. 그러므로 초기 투자비용이 거의 없고, 쉽고, 간편하며, 저비용 IT 서비스가 가능한 SaaS 기반의 소프트웨어 온-디멘드 방식의 서비스 모델로 시스템을 구현하였다.

• 한국컴퓨터정보학회논문지
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• 제23권12호
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• pp.115-122
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• 2018

As the proportion of software in weapon systems increases, the impact of software on the overall system is growing. As a result, software quality management becomes important, and related regulations and work manuals for quality assurance activities at each stage in the R & D process are becoming more sophisticated. However, due to the characteristics of the weapon system software that is developed as a customized form for the purpose of a specific mission, there are limits to specifying and definitizing the detailed requirements (upper and lower level) according to various operational concepts during the development process. Due to this, software modification (patch change, shape change due to upgrade, etc.) occurs on account of many defects and performance improvement in the mass production and operation stage after the development is completed. In this study, we analyze the characteristics of these weapon system softwares and propose quality improvement methods based on ISO / IEC / IEEE 29119 test method.

• 한국학교수학회논문집
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• 제6권2호
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• pp.39-53
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• 2003

본 연구에서는 인터넷 환경에 적합한 동적기하 소프트웨어에 대하여 논의하였다. 먼저 동적기하 소프트웨어의 필요성을 살펴보고, 상용되고 있는 소프트웨어인 GSP, Cabri, Cinderella의 기능 및 특징을 비교하였다. 그리고 본 연구진에 의하여 국내 최초로 개발된 DRC(Digital Ruler and Compass)의 개발과정과 구조에 대하여 알아보고, 인터넷 환경에서 DRC를 활용한 학습 방안에 대하여 알아보고 이후의 발전전망에 대하여 논의하였다.

• 한국컴퓨터정보학회논문지
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• 제21권12호
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• pp.219-226
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• 2016

In this paper, we propose an efficient repository model for online software education. The software education of app development consists of 7 stages: coding & debugging, submit, collaboration, review, validate, deployment, certification. Proposed repository model supports all 7 stages efficiently. In the coding & debugging stage, the students repeat coding and debugging of source. In the submit stage, the output of previous process such as source codes, project, and videos, are uploaded to repository server. In the collaboration stage, other students or experts can optimize or upgrade version of source code, project, and videos stored in the repository. In the review stage, mentors can review and send feedbacks to students. In the validate stage, the specialists validate the source code, project, and the videos. In the deployment stage, the verified source code, project, and videos are deployed. In the certification stage, the source code, project, and the videos are evaluated to issue the certificate.

• Journal of Positioning, Navigation, and Timing
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• 제8권1호
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• pp.1-12
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• 2019

In this paper, we implement a navigation software of a Global Navigation Satellite System (GNSS) receiver based on a commercial purpose GNSS software receiver platform and verify its performance by performing experimental tests for various GNSS signals available in Korea region. The SX3, employed in this paper, is composed of an application program and a Radio Frequency (RF) frontend, and can capture and process multi-constellation and multi-frequency GNSS signals. All the signal processing procedure of SX3 is accessible by the receiver software designer. In particular for an easy research and development, the Application Programing Interface (API) of the SX3 has a flexible architecture to upgrade or change the existing software program, equipped with a real-time monitoring function to monitor all the API executions. Users can easily apply and experiment with the developed algorithms using a form of Dynamic Link Library (DLL) files. Thus, by utilizing this flexible architecture, the cost and effort to develop a GNSS receiver can be greatly reduced.

• Asia pacific journal of information systems
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• 제16권4호
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• pp.27-47
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• 2006

Software companies try to upgrade the level of technology and quality of their products by adopting Software Process Improvement (SPI). First of all, the companies must understand affecting factors based on various environmental view points in order to acquire competitive advantage. In this study, a research model gets started on the basis of literature reviews, and identifies SPI factors that affect the maturity levels of organizations. Organizational members and assessment types are chosen as moderating factors. An empirical research has been made for analyzing the causal relationships among affecting factors and CMM levels. The results of this study will suggest several implications to decision makers who handle SPI issues.

• 한국위성정보통신학회논문지
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• 제9권3호
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• pp.109-115
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• 2014

본 논문에서는 위성영상처리 소프트웨어 및 시스템의 재사용성을 높이고, 개발기간 및 유지 관리 비용을 줄일 수 있는 알고리즘 컴포넌트화를 통한 위성영상처리 프레임워크 및 시스템에 대한 구조를 제안한다. 기존 위성영상처리 소프트웨어 및 시스템은 특정 데이터 및 기능에 국한되어 제한된 구조를 갖고 있다. 또한, 각각의 시스템들은 동일 및 유사한 영상처리 알고리즘이 사용되지만 해당 알고리즘을 중복적으로 개발하는 문제점이 있다. 이와 같은 문제점을 해결하기 위해 위성영상처리 소프트웨어 프레임워크의 요구사항을 분석하였다. 요구사항을 반영한 프레임워크 및 시스템 구조를 설계하였으며, 위성영상처리 프레임워크의 운영흐름도 함께 도출하였다.

• 전기학회논문지
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• 제62권6호
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• pp.845-851
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• 2013

Because the existing control system has been operating for about 20 years, it is necessary to upgrade the system for stable and efficient operation. But, there is a difficulty in maintenance by difference of manufacturer of each main control systems for boiler, turbine and generator. This developed IMCS(Integrated Monitoring and Control System) consists of more than 10,000 inputs and outputs for large scale thermal power plant. This paper consists of the development journey of IMCS MBC(mill and burner control) ; core binary protection & monitoring logic including prevention circuit of boiler explosion & implosion. In this project, the IMCS for boiler, turbine and generator was developed on basis of one communications platform. In this paper, the whole journey of development of IMCS MBC is dealt with designing software and hardware, coding application software, and validating software and hardware.

• 대한원격탐사학회지
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• 제18권3호
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• pp.147-153
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• 2002

The real-time reception and recording of down-link mission data from a satellite requires the highest reliability because the data lost in receiving process cannot be recovered. The data receiving and recording system has moved from a set of dedicated hardware and software components to commercial-off-the-shelf (COTS) components in order to reduce the system cost as well as to upgrade the system easily for handling other satellite data. The use of COTS hardware and middleware components prevents the system developer from correcting or modifying the internal operations of the COTS components, and hence, instant performance degradation of the COTS components which affects the reliable data acquisition must be covered by a software algorithm. This paper introduces the instant performance problem of a COTS data recording device which leads to the data loss in the real-time data reception and recording process. As a result, the requirement of the modification of the conventional data read/write technique is issued. In order to overcome the data loss problem due to the use of COTS components and the conventional software technique, a new algorithm called a software buffering technique is proposed. The experiments show that the application of the proposed technique results in reliable real-time reception and recording of high speed serial data.

• Journal of Astronomy and Space Sciences
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• 제11권1호
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• pp.41-52
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• 1994

Currently, the CCDs are widely used in astronomical observations either in direct imaging use or spectroscopic mode. However according to the recent technical advances, new large format CCDs are rapidly developed which have better performances with higher quantum efficiency and sensitivity. In many cases, some microprocessors have been adopted to deal with necessary digital logic for a CCD imaging system. This could often lack the flexibility of a system for a user for to upgrade with new devices, especially if it is a commercial product. A new design concept has been explored which could provide the opportunity to deal with any format of devices from any manufactures effectively for as tronomical purposes. Recently available PLD (Programmable Logic Devices)technology makes it possible to develop such digital circuit design, which can be integrated into a single component, instead of using micrprocessors. The design concept could dramatically increase the efficiency and flexibility of a CCD imaging system, particularly when new or large format devices are available and to upgrade the performance of a system. Some variable system control parameters can be selected by a user with a wider range of choice. The software can support such functional requirements very conveniently. This approach can be applied not only to astronomical purpose, but also to some related fields, such as remote sensing and industrial applications.