• Journal of the Korea Society for Simulation
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• v.22 no.4
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• pp.29-38
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• 2013

Modeling and simulation technology is being used in various fields. Especially in the field of military, Simulation-Based Acquisition (SBA) is recognized as a essential policy. To effectively carry out SBA, modeling and simulation techniques should be applied in the whole life-cycle for the weapon system development, and the framework and tools which can help the rapid component development and reusability are needed. In this research, we use the simulation framework based on modeling formalism for enhancement of reusability and a GUI-based modeling environment for rapid M&S component development. The Proposed framework can act as plug-in components on the basis of XML-based object model, so that the flexible design is possible for the change of the model and simulation structure. In addition, our methods are effective to implement the functions for supporting simulation such as the model data logging and communication with external systems. In this paper, we describe an architecture and functions for the framework and tools.

• 한국HCI학회:학술대회논문집
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• 2006.02a
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• pp.999-1004
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• 2006

본 연구에서는 다양한 개념 패싯과 관계 패싯들을 수용한 범용 과학기술 시소러스 구축용 웹 기반 워크벤치 개발에 대해 기술한다. 기존 국내 시소러스 구축용 워크벤치들이 제공하는 기본적인 용어 관계구축 기능을 확장하여 개념 패싯, 범주 관계 패싯, 의미역 관계 패싯, 속성 관계 패싯 및 속성 키워드 처리 기능을 원활히 제공할 수 있는 사용자 중심적 워크벤치를 개발함으로써 시소러스 상의 개념들에 대한 효율적인 구축이 가능하도록 한다. 또한 시멘틱 웹 상의 온톨로지 영역에 보다 근접한 고도화되니 시소러스 구축을 위해 용어들을 개념화시키고, 개념간의 다양한 관계를 설정하는 프로세스 중심적 설계로 분야 적합성이 높은 정보 처리 기반을 갖춘다. 궁극적으로 여러 마이크로 시소러스들을 통합하여 운용할 수 있는 복합 모델을 구축하는 것을 목표로 하고 있다. 이러한 목적에 부합하는 시스템 구현을 위해 CBD(Component Based Development) 개발 방법론으로 MSF/CD를 이용하였으며, 분산 환경에서 이기종간의 데이터 교환을 용이하게 하기 위하여 웹 서비스 (XML Web Services)를 이용하였다. 또한 시멘틱 웹 기반 연구자 간 협업 지원 서비스 구현을 위한 확장 검색용으로서도 활용할 수 있도록 하였다. 시소러스 반출은 CSV, XML 및 RDF를 모두 지원할 수 있도록 함으로써 다양한 사용자 요구 사항에 부합할 수 있도록 하였다. 시소러스 브라우징을 시각화 기반의 3단계 구조를 가진 플래시로 구현하여 사용자가 쉽게 시소러스를 탐색하고 분석할 수 있는 기반을 제공하였다. 또한 다양한 검색 요구를 만족시키고자 기본 검색, 고급 검색, 메타 검색을 선택할 수 있도록 하며, 개념 편집 및 시소러스 브라우징과 연동시켜 효율적인 시소러스 구축이 가능하도록 하였다. 본 연구의 워크벤치를 이용하여 구축된 시소러스는 기존 시소러스들에 비해 사용자가 보다 폭넓은 의미 기반 검색을 수행할 수 있도록 함으로써 다각적인 정보를 쉽게 획득할 수 있는 기반을 마련하고 있다는 데 의의가 있으며, 다국어 시소러스 및 다중 시소러스를 수용할 수 있는 방향으로 발전시킬 계획이다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.9
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• pp.1-8
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• 2017

The purpose of this study is to propose a cache structure for processing large-volume building information modeling (BIM) geometry data,whereit is difficult to allocate physical memory. As the number of BIM orders has increased in the public sector, it is becoming more common to visualize and calculate large-volume BIM geometry data. Design and review collaboration can require a lot of time to download large-volume BIM data through the network. If the BIM data exceeds the physical free-memory limit, visualization and geometry computation cannot be possible. In order to utilize large amounts of BIM data on insufficient physical memory or a low-bandwidth network, it is advantageous to cache only the data necessary for BIM geometry rendering and calculation time. Thisstudy proposes acache structure for efficiently rendering and calculating large-volume BIM geometry data where it is difficult to allocate enough physical memory.

• Journal of Technology Innovation
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• v.26 no.2
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• pp.69-93
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• 2018

As companies seek lower cost and superior quality at the same time, which depend on improvement in product architecture, they need to critically consider product architecture as part of corporate strategy. This research investigated how product architecture and organizational capability affect innovative outcomes with using architecture framework. As a result, we were able to find out Korean shipbuilding company has put much effort on integral works such as development of FGSS(Fuel gas supply system), PRS(Partial Re-liquefaction System) and weight lightening for improving fuel efficiency. And this kind of integral ability was realized by organizational capability of Korean shipbuilding company based on interactive relationship with plant workers. In contrast, Chinese shipbuilding companies focused excessively on the standard design and the convenience of research and development made by central government, overlooking the need for fine-tuning. As a result, the fuel efficiency of Chinese LNG ships turned out to be 7-10% lower than those of South Korea with using the same modules and components.

• Journal of Intelligence and Information Systems
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• v.9 no.1
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• pp.211-225
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• 2003

This paper aims at the design of collaborative architecture for business to business (B2B) applications based on Web service protocol. As different business processes should be interfaced in the B2B environment collaboration is important fur the success of B2B implementation. For the development tools, XML, Web services and ASP.NET were adopted Web services are emerging to provide a systematic and extensible framework for application-to-application interaction. The Web services framework is divided into three areas; communication protocols, service descriptions and Web discovery. Web services such as SOAP, WSDL and UDDI correspond to the three areas respectively. ASP.NET is utilized which corresponds to the component and service set located in the top layer of .NET. For the service of product category and product details, Web service architecture was implemented based upon the SQL server database.

• Journal of KIISE:Computing Practices and Letters
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• v.16 no.12
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• pp.1239-1243
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• 2010

The web environment is evolving rapidly. Testing in the web based software is an essential process to improve stability and productivity. Testing of complex web contents and ill(user interface) is most important thing. Implemented test cases are efficient when they are automated and reusable. But, most of the testing automation tools are focused on technical accessibility and functions still. A collaboration of the persons concerned and reusability of implemented test case are ignored. In this paper we propose an efficient way to design automated test case in web environment, and to share and pattern automated test cases we introduce testing framework called NTAF(NHN Test Automation Framework.). The NTAF is based on open source framework. It provides integrated testing environment that web testing cane be automated and managed continuously.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.3 no.3
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• pp.31-38
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• 2010

It has become more difficult to correspond an cyber attack quickly as patterns of attack become various and complex. However, current security mechanisms just have passive defense functionalities. In this paper, we propose new network security architecture to respond various cyber attacks rapidly and to chase and isolate the attackers through cooperation between security zones. The proposed architecture makes it possible to deal effectively with cyber attacks such as IP spoofing or DDoS(Distributed Denial of Service), by using active packet technology including a mobile code on active network. Also, it is designed to have more active correspondent than that of existing mechanisms. We implemented these mechanisms in Linux routers and experimented on a testbed to verify realization possibility of attacker response framework using mobile code. The experimentation results are analyzed.

• The KIPS Transactions:PartA
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• v.14A no.2
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• pp.125-132
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• 2007

Recently, in the engineering area, there is an increasing need for researchers at a distance to share the result of the experiment, without having to visit the experiment facilities. Especially in the civil engineering, researchers feel the need for participating in a experiment conducted at a distant location. In addition, it is suggested that high-cost facilities should be used by remote researchers thereby increasing the utilization rate. This paper proposes a remote experiment environment in civil engineering that are being developed in a project called Korea Construction Engineering Development(KOCED), which connects major civil engineering experiment facilities using grid technology, allows researchers to participate in a remote experiment, and has the experiment results shared by remote researchers automatically. Then, based on the suggested environment, we designed a hybrid test facility that involves two physical experiment facility sites and one numerical simulation site that are geographically apart. Then, we implemented its prototype and ran some tests, which showed a possibility of grid-based civil engineering experiment.

• KIPS Transactions on Software and Data Engineering
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• v.4 no.3
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• pp.135-142
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• 2015

As the importance of software to society has grown, more and more schools worldwide teach coding basics in the classroom. Despite the rapid spread of coding instruction in grade schools, experience in the classroom is certainly limited because there is a gap between the curriculum and the existing computing environment such as the mobile and cloud computing. We propose an approach to fill this gap by using a mobile environment and the robot on the cloud-based platform for effective teaching. In this paper, we propose an architecture called Cloudboard that enables knowledge sharing and collaboration among knowledge providers in the cloud-based robot platforms. We also describe five representative architectural patterns that are referenced and analyzed to design the Cloudboard architecture. Our early experimental results show that the Cloudboard can be effective in the development of collective robotic systems.

• Proceedings of the Korea Contents Association Conference
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• 2007.11a
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• pp.65-69
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• 2007

Analyzed information from research outcomes such as papers, reports and patents is important data as an indicator for setting up the direction of future research policy, as well as is essential for active sharing and dissemination of research information and cooperative work between researchers. In this paper, as a method for presenting the analyzed information easily, accurately and systematically, we describe a method that processes the information about research outcomes into ontology-based knowledge and expands the knowledge by reasoning. Especially, we focus on the definition of analyzed information from research outcomes and queries and postprocess for obtaining the analyzed information from the ontology-based knowledge.