• The Journal of the Korea Contents Association
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• v.12 no.1
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• pp.59-67
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• 2012

Software change management is focused on the change of a entity like the change of contents of a system or a document. In change management, interactive relationship among requirements and complex decision making is needed to obtain optimized status. In this paper we design a management model of software change management in distributed environment which mange the change among components by time and situation. In addition, each components are defined and use ANP technique for best decision-making by using the subordinate relationship and feedback considering the mutual dependency referring the change of components in distributed environment. Thus, we analyze the dependency among each components and show 3 types of change relationship. Also through analysis of dependency, we verified the effectiveness of such approach.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2002.11a
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• pp.291-294
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• 2002

본 논문에서는 디지털 TV 데이터 방송에 있어 핫스팟 기능을 지원하기 위한 비트스트림 제작에 관하여 서술한다. 디지털 TV 데이터 방송에 있어 핫스팟이란 시청자의 선택에 의해 더 많은 정보를 제공할 수 있는 "클릭 가능한 비디오 객체"를 의미한다. 이 기능은 다른 용도로도 사용될 수 있으나, 특히 TV 전자상거래(T-commerce)에 유용하게 사용할 수 있다. 이러한 기능을 제공하기 위해서는 핫스팟 기능을 처리할 자바 응용프로그램, 즉 엑슬릿(Xlet)과 화면상에서 핫스팟의 시공간적 위치를 지정하는 핫스팟 데이터, 그리고 핫스팟과 주 프로그램화면 간의 동기화를 위한 시간 기준 등이 송출되는 비트스트림 내에서 제공되어야 한다. 본 논문에서는 핫스팟 적용 시나리오를 설명하고 이 시나리오에 따라 핫스팟 기능을 제공할 수 있는 비트스트림을 제작하였다. 보다 더 구체적으로는, 엑슬릿을 ISO/IEC 13818-6 DSM-CC 확장 표준의 오브젝트 캐루젤로, 그리고 핫스팟 데이터를 MPEG-2 프라이벳 섹션(Private section)으로 구성하여 비트스트림에 포함시켰다. 또한, 시간 기준을 위해 DSM-CC 확장 표준에서 규정하고 있는 정규 재생시간(normal play time, NPT) 클록을 이용하여 시간 참조 값을 생성하였으며, 트리거(trigger)를 보내기 위한 이벤트들도 동일 표준에서 규정하고 있는 이벤트 서술자에 따라 생성하여 비트스트림 내에 포함시켰다. 내에 포함시켰다.

• Journal of Digital Contents Society
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• v.8 no.4
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• pp.587-592
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• 2007

This paper explains the design and implementation of the EC_NH. EC_NH is a system that is suitable for detecting, sharing and recovering software error based on multimedia CSCW(Computer Supportes Cooperated Work). With error sharing system, a group cooperating users can share error applications. From the perspective of multimedia collaborative environment, an error application becomes another interactive presentation error is shared with participants engaged in a cooperative work. Our Digital Carousel enables user to share media objects through media synchronization mechanism. We implemented the Digital Carousel so that the users participated in collaborative work may refer shared media or error objects as the same view to others.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2015.07a
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• pp.527-530
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• 2015

2014 년 4 월 TTA 에서 개정된 "HTML5 기반 스마트 TV 플랫폼(TTAK.KO-07.0111/R1)" 표준의 멀티스크린 서비스는 UNnP, mDNS 등의 ZeroConf 네트워크 기술을 기반으로 스마트 TV 수신기가 스마트 폰이나 태블릿과 같은 다양한 컴패니언 디바이스를 발견하고 서로 연결하여 디바이스 간 연동 서비스를 구현할 수 있는 기술을 정의하고 있다. 또한, 이 멀티스크린 기술을 활용하여 개발된 서비스(앱)가 표준을 준수하는 다양한 수신기에서 동일한 사용자 경험(UX)으로 실행되기 위해서는 수신기가 멀티스크린 기술 요구 사항을 준수하여 구현되었는지를 검증하는 적합성 시험이 반드시 필요하다. 본 논문에서는 이러한 적합성 시험을 위한 시험 기준과 수행절차, 판정 기준 등을 정의하고 있는 " HTML5 기반 스마트 TV 플랫폼 수신기 적합성 시험(TTAK.KO-07.0119/R1)" 표준에 멀티스크린 시험을 위하여 추가된 시험 항목과 이를 실제로 실행하여 수신기를 검증하기 위하여 개발된 테스트케이스를 소개한다. 아울러, 컴패니언 디바이스에서 실행되면서 수신기의 테스트케이스와 연동하여 수신기 기능을 검증하는 데 활용하는 모바일 테스트 프레임워크와 이를 기반으로 하는 모바일 테스트케이스의 구현을 설명한다. 아울러, 본 논문에서는 TTA 에 구축된 멀티스크린 시험 환경에서 표준 기반 참조 수신기를 대상으로 멀티스크린 시험을 수행한 사례를 통해 시험환경의 유효성을 확인하고 향후 개선 방향을 제시한다.

• Journal of Information Management
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• v.29 no.4
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• pp.1-22
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• 1998

The domain of database standardization can be divided into three fields; general database, data, and database by basic reference model. The international activities for the database standardization are currently being proceeded variously and actively. This article analyzes the status of the activities of ISO/TC46 in the information & documentation and ISO/IEC JTC1/SC32 in the data management and interchange, and proposes a plan for strenthening the activities of the domestic technical committees related to these activities. This also presents the status of the legislative organizations of the domestic databases standardization and the directions of promoting their activities.

• KIPS Transactions on Computer and Communication Systems
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• v.5 no.9
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• pp.237-246
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• 2016

DIBR (Depth Image Based Rendering) is a multimedia technology that generates the virtual multi-view images using a color image and a depth image, and it is used for creating glasses-less 3-dimensional display contents. This research describes the effect of depth accuracy about the objective quality of DIBR-based multi-view images. It first evaluated the minimum depth quantization bit that enables the minimum distortion so that people cannot recognize the quality degradation. It then presented the comparative analysis of non-uniform domain-division quantization versus regular linear quantization to find out how effectively express the accuracy of the depth information in same quantization levels according to scene properties.

• Journal of the Korea Society of Computer and Information
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• v.19 no.11
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• pp.105-113
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• 2014

In this paper, we propose an OWL DL mapping rules for construction legal ontology based on the analyzed relationship between the structural features and elements of the statute. The mapping rule to be proposed is the method building the structure of the domestic statute, unique attribute of the statute, and reference relation between laws with TBox, and the legal sentence is analyzed, and the pattern type of the sentence is selected. It expresses with ABox. The proposed mapping rule is transformed to the information in which the computer can process the domestic legal document. It is usable for the legal knowledge base.

• Journal of Korea Society of Industrial Information Systems
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• v.29 no.2
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• pp.55-68
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• 2024

Plant engineering companies create or refer to requirements documents for each related field, such as plant process/equipment/piping/instrumentation, in different engineering departments. The process-related requirements document includes not only a description of the process but also the requirements of the equipment or related facilities that will operate it. Since the authors and reviewers of the requirements documents are different, there is a possibility that inconsistencies may occur between equipment or parts design specifications described in different requirement documents. Ensuring consistency in these matters can increase the reliability of the overall plant design information. However, the amount of documents and the scattered nature of requirements for a same equipment and parts across different documents make it challenging for engineers to trace and manage requirements. This paper proposes a method to analyze requirement sentences and calculate the similarity of requirement sentences in order to identify semantically identical sentences. To calculate the similarity of requirement sentences, we propose a named entity recognition method to identify compound words for the parts and properties that are semantically central to the requirements. A method to calculate the similarity of the identified compound words for parts and properties is also proposed. The proposed method is explained using sentences in practical documents, and experimental results are described.

• The Journal of Society for e-Business Studies
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• v.24 no.2
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• pp.199-216
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• 2019

The public SW market is 3 trillion won, which is less than 10% of the total SW market. However, due to the nature of the domestic market, it is an important market with a relatively large impact on small and medium-sized software companies. In this market, government is operating the Public SW Project Demand Forecasting System in order to support the marketing activities of small and medium sized SW companies and establish a fair market order. The current system has limitations such as lack of user convenience, insufficient analysis capability and less business connection. This study was conducted to identify the problems of these systems and to propose a new system for improving the convenience of users and expanding the information utilization of SMEs. To this end, we analyzed the requirements of each stakeholder. We proposed the 2-phased forecasting cycle, the management cycle, and the system life cycle of public SW projects and created a unified identifier (UID) so that the information of those projects can be identified and linked among them. As a result, an integrated reference model of project information management based on system life cycle was developed, which can explain the demand forecasting and project information, and the improved processes was also designed to implement them. Through the result of this study, it is expected that integrated management of public SW projects will be possible.

• Convergence Security Journal
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• v.12 no.1
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• pp.79-87
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• 2012

Future Internet has been designing and developing in the world because of overcoming limits of current Internet and accepting new requirements. Therefore it is totally different from architectures of current Internet and it is based on Clean-Slate. Future Internet already has been studying with enormous investment by advanced countries such as USA, EU etc. Technical characteristics of Future Internet can be categorized into Infra techniques, Architectures and Service techniques. Especially, our country is in a superior position in Infra techniques and Service techniques. We can have competitiveness to develop trust communication in Future Internet because we have advantages of various Services such as mobile communication, Machine to Machine and Sensor Networks. This paper aims to analysis reference model of trust communication in Future Internet. To achieve this, we studied analysis of security techniques in four Future Internet researches of NSF.