• Proceedings of the Korean Information Science Society Conference
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• 2006.06b
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• pp.178-180
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• 2006

기존의 Ontology를 이용한 이미지 검색 시스템이나. 간단한 구조를 가진 메타데이터 기반의 분산 이미지 검색 시스템들의 단정들을 극복하기 위해 다양한 이미지 제공자들의 자율성을 보장하면서, 시맨틱 기반의 이미지 검색을 지원하는 분산 시각미디어 검색 프레임워크가 제안되었다. 하지만 제안된 프레임워크에서는 Visual Media Data를 제공하는 Provider와 클라이언트의 Query를 처리해서 Provider에게 전달하는 Broker 사이의 연결 상태에 대한 신뢰성이 보장되지 않았고, 다수의 클라이언트 접속에 의해 발생하는 Broker 내부 컴포넌트들의 Overhead 문제를 효과적으로 해결할 수 없었다. 본 논문에서는 기존의 프레임워크에 Monitoring 시스템을 도입하여 Broker 내부 컴포넌트들의 수행시간을 측정하여 저장함으로써, 다수의 클라이언트 요구에 의해서 Overhead가 발생하는 컴포넌트들을 Monitoring 할 수 있고, Provider의 연결 상태를 정기적으로 확인하여 Broker 내부에 등록되어 있는 Provider의 도메인 리스트를 서버 상태가 확인된 리스트로 업데이트 시켜줌으로써 연결 상태에 대한 신뢰성을 제공할 수 있도록 하기 위한 Monitoring 시스템을 제안한다.

• Information and Communications Magazine
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• v.33 no.5
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• pp.65-72
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• 2016

사물인터넷 (Internet of Things) 이란 통신 기능이 있는 사물들을 (주변의 정보를 측정할 수 있는 센서, 사물에 대한 제어를 하는 엑츄에이터) 인터넷에 연결하여 보다 스마트한 서비스들을 손쉽고 빠르게 만들어 사용자들에게 제공할 수 있도록 해주는 기술을 말한다. 스마트 시티, 스마트 공장, 스마트 홈 등 다양한 분야에서 사물인터넷 기술을 활용하여 서비스를 만들어 내고 있으며, 앞으로 관련 산업 및 시장 규모는 지속적으로 증가되어질 것으로 보고되어지고 있다. 서로 다른 제조업체 그리고 다양한 산업 분야에서 만들어지는 사물들이 서로 연결되어 하나의 생태계를 이루기 위해서는, 글로벌 표준에 기반하여 기기들이 개발되어져야하며, 이들 사물에 대한 호환성 및 적합성이 검증되어야한다. oneM2M (원엠투엠) 에서는 글로벌한 표준으로 사물인터넷의 서비스 계층에 대한 표준을 만들고 있다. oneM2M은 릴리즈 1 공통기능에 대한 표준 제정을 마쳤으며, 현재 테스팅과 관련하여 상호호환성 및 적합성 테스팅을 위한 표준 개발을 진행하고 있다. 본 고에서는 사물인터넷 기기들에 대한 전반적인 테스트 프레임워크로 활용되어질 수 있는 oneM2M 테스팅 관련 표준 프레임워크에 대한 내용을 소개한다.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2022.10a
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• pp.263-264
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• 2022

2010년부터「기업재해경감법」에 따라 기업재난관리표준으로 기업재해경감 우수기업 제도를 시행하고 있다하지만 「기업재해경감법」이 자율로 되어 있어 민간기업 스스로가 이 제도를 도입하여 실행하는 문화가 정착할 수 없었다. 따라서 유럽 등 선진국처럼 새로운 제도 시행을 하기 전 공공분야에 적용하여 효과성이 검증되면 민간으로 확대한다. 따라서 재난관리책임기관이 기능연속성계획을 수립하게 되면 의무화가 되지 않은 민간영역으로 확대할 수 있는 계기가 마련되었다. 본 연구는 기수립 되어 있는 기능연속성계획의 성숙도 측정이 어렵고 평가체계를 도입하기 위한 후속 정책 지원을 위하여 HLS 기반의 프레임워크 개선방안을 제시하고자 한다.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2015.05a
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• pp.206-214
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• 2015

• Informatization Policy
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• v.23 no.2
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• pp.73-97
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• 2016

Social changes due to ICT like Big Data, IoT, Cloud and Mobile is progressing rapidly. Now, we get out of the old-fashioned frame was measured at the level of the information society through the introduction of PC, Internet speed and Internet subscribers etc and there is a need for a new type of diagnostic information society framework. This study is the study for the framework established to diagnose and measure post-information society. The framework and indicators were chosen in accordance with the technological society coevolution theory and information society-related indicators presented from authoritative international organizations. Empirical results utilizing the indicators and framework developed in this study were as follows: First, the three sectors, six clusters (items), 25 nodes (indicators) that make up the information society showed that all strongly connected. Second, it was diagnosed as information society development (50.34%), technology-based expansion (25.03%) and ICT effect (24.63%) through a network analysis (ANP) for the measurement of importance of the information society. Third, the result of calculating the relative importance of the cluster and nodes showed us (1)social development potential (26.04%), (2)competitiveness (15.9%), (3)ICT literacy (15.5%) (4) (social)capital (24.3 %), (5)ICT acceptance(9.54%), (6)quality of life(8.7%). Consequently, We should take into account the effect of the economy and quality of life beyond ICT infrastructure-centric when we measure the post-information society. By applying the weighting we should performs a comparison between countries and we should diagnose the level of Korea and provide policy implications for the preparation of post-information society.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.1
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• pp.348-354
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• 2012

This paper presents a framework for quantitative software development performance measurement and analysis based on characteristics of software in System on Chip (SoC) industry, one of the semiconductor businesses. In this paper, we propose a measurement model based on not only theoretical model (Performance Pyramid) but also characteristics of SoC embedded software. Quantitative software development performance measurement is not just collecting indicators but analyzing quality, cost, and delivery (QCD) of collected indicators. Externally, it is possible for programmers to develop software meeting customers' needs. Internally, more efficient software development can be possible through the visible productivity increase. Using the proposed framework, the paper quantitatively measures embedded software development performance.

• The Journal of the Korea Contents Association
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• v.17 no.7
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• pp.44-55
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• 2017

Many enterprises have recently been pursuing process innovation or improvement to attain their performance goal. To comprehensively support business process execution, the concept of business process management (BPM) has been widely adopted. A life cycle of BPM is composed of process diagnosis, (re)design, and enactment. For aligning with enterprise strategies, all BPM activities must be closely related to performance metrics because the metrics are the drivers and evaluators of business process operations. The objective of this paper is to propose a life cycle-based BPM framework integrated with the process-based performance measurement model, in which business processes are systematically interrelated with key performance indicators (KPIs) during an entire BPM life cycle. By using the proposed BPM framework, company practitioners involved in process innovation projects can easily and efficiently find the most influencing processes upon enterprise performance in the process diagnosis phase, evaluate the performance of newly designed process in the process (re)design phase, monitor the KPIs of new business process, and adjust business process activities in the process execution phase through the BPM life cycle.

• Journal of KIISE:Software and Applications
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• v.37 no.11
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• pp.812-825
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• 2010

Service-Oriented Computing (SOC) is a reuse paradigm for developing business processes by dynamic service composition. Service consumers subscribe services deployed by service providers only through service interfaces. Therefore, services on server-side are perceived as black box to service consumers. Due to this nature of services, service consumers have limited knowledge on the quality of services. This limits utilizing of services in critical domains hard. Therefore, there is an increasing demand for effective methods for monitoring services. Current monitoring techniques generally depend on specific vendor's middleware without direct access to services due to the technical hardship of monitoring. However, these approaches have limitations including low data comprehensibility and data accuracy. And, this results in a demand for effective service monitoring framework. In this paper, we propose a framework for efficiently monitoring services. We first define requirements for designing monitoring framework. Based on the requirements, we propose architecture for monitoring framework and define generic patterns for efficiently acquiring monitored data from services. We present the detailed design of monitoring framework and its implementation. We finally implement a prototype of the monitor, and present the functionality of the framework as well as the results of experiments to verify efficiency of patterns for transmitting monitoring data.

• Journal of The Korean Association of Information Education
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• v.24 no.1
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• pp.59-69
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• 2020

The purpose of this study is to design the framework of evaluation on learner's cognitive skill for artificial intelligence(AI) education through computational thinking. To design the rubric and framework for evaluating the change of leaner's intrinsic thinking, the evaluation process was consisted of a sequential stage with a) agency that cognitive learning assistance for data collection, b) abstraction that recognizes the pattern of data and performs the categorization process by decomposing the characteristics of collected data, and c) modeling that constructing algorithms based on refined data through abstraction. The evaluating framework was designed for not only the cognitive domain of learners' perceptions, learning, behaviors, and outcomes but also the areas of knowledge, competencies, and attitudes about the problem-solving process and results of learners to evaluate the changes of inherent cognitive learning about AI education. The results of the research are meaningful in that the evaluating framework for AI education was developed for the development of individualized evaluation tools according to the context of teaching and learning, and it could be used as a standard in various areas of AI education in the future.

• Journal of Korea Multimedia Society
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• v.12 no.1
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• pp.69-84
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• 2009

In this paper, a real-time web-casting framework for many individuals or small organizations imploring internet broadcasting, is designed and implemented. It is the purpose of the proposed framework that any individual can easily construct his own broadcast station if he has minimum facility for the content transmission to the framework. This type of system should have a flexible architecture to be applicable in wide variation of operational environment. Since the proposed framework follows a component-based hierarchical structure consisting of 3 types of components, it can effectively cope with change of internal or external operational environment by simple modification of the associated component with the change. Also, various types of target application systems in the aspects of cost and performance can be constructed in accordance with how to associate upper layer components with hardware platforms. A real prototype system based on the proposed framework is implemented, and then the response delay time is measured under varying number of content productions and content receivers. The results show that the response delay time follows M/M/1 model, which is one of the well-known performance models, and the implemented system may accommodate from 16 to 20 productions.