• Journal of the Korea Society of Computer and Information
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• v.3 no.3
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• pp.47-53
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• 1998

This Paper describes design and implementation of the Class Library Management System(CLMS) that is used to efficiently software reuse. Communication softwares are various and wide. They continually must be modified themselves for new demand. maintained previous modules, and extended for new service. Software reuse will have been enhanced of software quality and software developer's productivity The CLMS consists of the Class Register, the Class Retriever, and the Class Browser. The CLMS considered reuse of source code and SDL design specifications.

• Journal of Korea Game Society
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• v.11 no.6
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• pp.53-60
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• 2011

Since the importance of software reliability for game service increases continuously, the reliability evaluation becomes very important. This research performed an experiment which was intended to analyze the effect of software verification and validation, a representative activity of the software development process, on the software reliability. The results from the experiments provided the reliability evaluation based on the development process (e.g., Bayesian Belief Network based reliability estimation) with very useful bases.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.04a
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• pp.1259-1261
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• 2012

우리가 제안한 BPF는 각 계층을 관리하기가 용이하다. BPF 내 레어어 구조는 인접한 상 하위에 대한 정보를 갖는다. 효율적인 소프트웨어 컴포넌트 재사용을 위해 컴포넌트, 서비스, 비즈니스 프로세스 모델 레이어를 매핑한다. 레이어간 접목은 새로운 비즈니스 변경에 따른 응용프로그램의 개발과 시스템의 유지 보수가 용이하다. 기본적인 클로즈 구조를 통해 각 레이어를 보다 효율적으로 관리한다.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11b
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• pp.514-516
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• 2005

CBD(Component Based Development)는 장기간에 걸쳐 발전된 소프트웨어 개발의 한 형태이며, 이미 표준화되거나 공인되지 않았지만 실제로 모든 기업들은 컴포넌트를 나름대로 제작하거나 이미 잘 개발되어진 컴포넌트를 재사용하여 자체 프로젝트에 재활용하므로써 최소의 개발비로 표준화를 추구하는 한편 최대의 기능과 신속한 개발로 소프트웨어의 품질과 생산성 향상을 도모하고 있다. 본 논문에서는 레거시 시스템을 활용하여 컴포넌트로 되어 있지 않은 프로그램을 컴포넌트화 함은 물론 기존 애플리케이션에 존재하는 컴포넌트를 래핑하여 재사용 가능한 서비스를 생성, 재공하기 위한 CBD 기반의 회계처리 응용 시스템을 설계 및 구현한다. 제안된 회계처리 응용 시스템 APAS(Accounting Process Application System) 모델은 시스템 구축 개발 기간의 단축과 관리 및 유지보수를 쉽게 하여 업무의 효율성을 높이고, 레거시 시스템을 재활용하여 신규 개발시 우려되는 위험도를 낮추어 소프트웨어 생산성 제고 효과도 얻을 수 있다.

• Journal of KIISE:Computing Practices and Letters
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• v.6 no.6
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• pp.601-607
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• 2000

Runtime updating of component is a technology which is replacing component used in program with newly implemented component without terminating running program using old one. Recently, it is trend that softwares are developed by reusing the existing component. When we use these components to softwares which have to offer consecutive services, they must be terminated or shutdown to update component with newly implemented one. In this case, users who are offered services of software have to request them one more time and sometimes lose informations which they use. Therefore, this paper suggests how to update components with newly implemented one without terminating tbe running software wbicb is cmnposed witb tbe component for tbe purpose of solving problems which are occurred wben existing components are being ubdated.

• Journal of Digital Convergence
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• v.9 no.5
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• pp.225-233
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• 2011

Internet telephony is an Internet service which supports voice telephone using VoIP technology on the IP-based Internet. It has some advantages in that voice telephone services can be accompanied with multimedia services such as video communication and messaging services. Recently, the introduction of smart phones has led to a growth in social networking services and thus, the research and development of Internet telephony has been actively progressed and has the potential to become a replacement for the telephone service that is currently being used. In this paper we designed and implemented a recording system which records voice data of SIP-based Internet telephone's voice calls. It is developed on the linux system and has some features such as audio mixing of two in/out voice channels, live packet sniffing, and the ability to transfer mixed audio files to the log file server. These functions are implemented using various open source softwares. Afterwards, this VoIP recording system will be applied as a base technology to advanced services like a VoIP-based call center system.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.24 no.3
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• pp.435-440
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• 2020

The application of the unmanned vehicles in various fields has been attracting attention, and the development of a service utilizing unmanned vehicles has been proceeding. As the service market using the unmanned vehicles rapidly increases, the demand for the development of software for performing the mission with unmanned vehicles is increasing. In particular, as the demand for unmanned vehicle utilization services for public missions such as fire detection, mail delivery, and facility management increases, the importance of developing mission software for unmanned vehicle is increasing. To develop common mission software, architecture design should be made so that unmanned vehicle service provider can easily develop software using reusable libraries or functions through analysis commonly required by various public institutions. In this paper, we discuss the research trends of mission software for public mission unmanned vehicles. In addition, the architecture design of developing formal mission software is proposed. Finally, we propose a data transfer architecture between mission software and data platform.

• Proceedings of the Korean Society of Computer Information Conference
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• 2024.01a
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• pp.283-284
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• 2024

한국의 스마트폰 보유율은 약 95%로 세계 최고이며, 사용 시간이 가장 긴 애플리케이션의 대부분이 SNS이다. 코로나19로 여행객이 늘면서 사람들은 SNS를 통해 국내외 여행 사진을 게시 및 자랑한다. 그러나 기존 SNS에서는 지역별 사진을 찾기 어렵고 정확한 위치 표시가 부족하다. 이에 따라 원하는 사진과 위치를 확인하고 내비게이션 기능을 이용하여 목적지까지 갈 수 있는 앱을 개발하게 되었다. 국내 지도상의 주요 포토 스팟과 해당 지역의 사진을 확인할 수 있는 애플리케이션을 개발하여 사용자가 직접 참여하고 공유할 수 있도록 한다.

• The KIPS Transactions:PartA
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• v.14A no.2
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• pp.117-124
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• 2007

In this paper we present a translation lookaside buffer (TLB) system with low power consumption for embedded processors. The proposed TLB is constructed as multiple banks, each with an associated block buffer and a corresponding comparator. Either the block buffer or the main bank is selectively accessed on the basis of two bits in the block buffer (tag buffer). Dynamic power savings are achieved by reducing the number of entries accessed in parallel, as a result of using the tag buffer as a filtering mechanism. The performance overhead of the proposed TLB is negligible compared with other hierarchical TLB structures. For example, the two-cycle overhead of the proposed TLB is only about 1%, as compared with 5% overhead for a filter (micro) TLB and 14% overhead for a same structure without continuos accessing distinction algorithm. We show that the average hit ratios of the block buffers and the main banks of the proposed TLB are 95% and 5% respectively. Dynamic power is reduced by about 95% with respect to with a fully associative TLB, 90% with respect to a filter TLB, and 40% relative to a same structure without continuos accessing distinction algorithm.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.04a
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• pp.1379-1381
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• 2012

최근 스마트폰의 사용은 단순한 정보의 획득이 아닌 보다 높은 만족과 편의성을 얻을 수 있는 서비스가 각광을 받고 있다. 이러한 서비스 중에서 추천시스템은 고객이 좋아할 만한 서비스나 항목을 추천해주는 서비스이다. 본 논문에서는 이러한 추세에 맞추어서 안드로이드를 기반으로 사용자가 원하는 음식을 쉽게 검색도 하고, 데이터마이닝 기법을 이용하여 나이와 성별, 전날 먹은 음식의 종류에 따라 가중치를 부여하여 음식을 추천해주는 시스템을 개발하였다.