• Proceedings of the Korean Information Science Society Conference
• /
• 2005.11a
• /
• pp.895-897
• /
• 2005

인터넷의 발달로 디지털콘텐츠의 생성과 활용이 급격히 증가하면서 디지털콘텐츠에 대한 서비스 방식이 URL 방식에서 URN 방식으로 변화하고 있다. 한국과학기술정보연구원의 KOI나 한국전산원의 UCI가 그 예라고 할 수 있다. 그러나 식별체계 간의 등록$\cdot$변환서비스가 호환되지 않기 때문에 식별체계를 활용하여 디지털콘텐츠를 서비스하기 위해서는 커널메타데이터를 각각 등록하여야 하며, 디지털콘텐츠 변환서비스도 서로 연계가 이루어 지지 않기 때문에 개별적으로 서비스 되고 있다. 디지털콘텐츠를 보다 효율적으로 생성$\cdot$활용하기 위하여 식별체계간의 등록$\cdot$변환서비스 연계가 가능한 식별체계 간 연계시스템 구축 방안을 제시하고자 한다.

• ETRI Journal
• /
• v.23 no.3
• /
• pp.111-120
• /
• 2001

For scalable multicast transport, one of the promising approaches is to employ a control tree known as acknowledgement (ACK) tree which can be used to convey information on reliability and session status from receivers to a root sender. The existing tree configuration has focused on a 'bottom-up' scheme in which ACK trees grow from leaf receivers toward a root sender. This paper proposes an alternative 'top-down' configuration where an ACK tree begins at the root sender and gradually expands by including non-tree nodes into the tree in a stepwise manner. The proposed scheme is simple and practical to implement along with multicast transport protocols. It is also employed as a tree configuration in the Enhanced Communications Transport Protocol, which has been standardized in the ITU-T and ISO/IEC JTC1. From experimental simulations, we see that the top-down scheme provides advantages over the existing bottom-up one in terms of the number of control messages required for tree configuration and the number of tree levels.

• Journal of the Korea Society of Computer and Information
• /
• v.21 no.7
• /
• pp.31-38
• /
• 2016

In this paper, we propose a direction for improving 'Geospatial information open platform' service to support the converged and integrated geospatial information. Since there can be a number of issues relating to the support for geospatial information convergence industry, two qualitative surveys were performed to collect opinions comprehensively and specifically. The responses from 165 experts from 5 areas that use geospatial information were used, and the requirements of demanders were divided into the aspect of policy, aspect of data development and distribution, and aspect of data utilization support in order to effectively analyze the survey results. As a result, a total of 26 major issues were derived and it was deemed that it is necessary to find a way to expand the role of 'Geospatial information open platform' from "Open-API Oriented Passive Spatial Information Open Platform" to "Platform that Comprehensively Provides Active Convergence Support Information" order to resolve the issues derived.

• Journal of Information Technology Services
• /
• v.3 no.2
• /
• pp.25-37
• /
• 2004

SME's(Small and Medium-sized Enterprises) have limited resources to build information systems on their own. They do not have effective information systems and not utilize e-business technology enough. The government thus have provided various supports for SME's IT developments. However, those supports do not seem so effective that SME's can operate appropriate information systems and do e-business well. The objective of this study is to develop conceptual policies for the government. We suggest an integrated government support which consists of three core stratigies: one-stop service center, outsourcing of public service, and triggering strategy. In order for the government support to be effective, the government should serve SME's needs continuously and professionally.

• Proceedings of the Korean Institute Of Construction Engineering and Management
• /
• 2004.11a
• /
• pp.145-152
• /
• 2004

Many construction companies have developed many kinds of information system to integrate the information created in the phase of planning, design, procurement, construction, and maintenance of construction project. However, the previous researches for the state of applying information technologies and the efforts of the analysis of the present information system launched in domestic construction industry is very rare. There also has been short of research on the construction decision-making support theory in construction business and industry. Hence this paper would contribute in identifying the state of information technologies and the theory of decision-making support of the information system in general construction company. and suggest the characteristic model on the information system for the construction decision-making support. The model consists of the two dimensions; (1) organizational hierarchy (2) data analyzing technology. This research, especially, can be expected to initiate the discussion on framework for understanding the construction decision-making support system in construction industry. The model is nut a practical methodology, but a window that offers a new perspective un sources of information system in each construction company, and thus can provide a clue of the useful guide to construction information system development.

• Asia pacific journal of information systems
• /
• v.23 no.1
• /
• pp.1-19
• /
• 2013

The market for commercial open source software (OSS) has been rapidly growing with the proliferation of OSS. One way to commercialize OSS is the support model, which has been adopted by leading OSS firms such as Red Hat and JBoss. Despite the growing interest in OSS commercialization, little research has provided OSS support providers with a pricing guideline. In this paper, we examine the optimal pricing strategies for OSS support providers. Our benchmark is a monopoly case in which we investigate a startup software vendor's incentive to choose the OSS support regime over the proprietary one. Then we extend the model to a duopoly case in which OSS under the support regime competes against proprietary software. We characterize the conditions under which the OSS support model is viable under competition. We believe that our results offer insights to the OSS vendors who consider commercializing their OSS with a support model.

• Journal of the Korea Society of Computer and Information
• /
• v.21 no.3
• /
• pp.137-143
• /
• 2016

This study is to test moderating effects of North Korean Refugees' coping styles in the causal relation between social support and psychological wellbeing and suggest policy implications for helping social adjustment of North Korean Refugees. For this study, 100 North Korean Refugees were sampled and surveyed. The analytical result of this study showed that the degree of psychological wellbeing was highest among the refugees of the entire families migration. Also, this study showed that the causal relationship between social support and psychological wellbeing was not significant, and moderating effects of emotional support and appraisal support were significant, while moderating effects of material support and informative support were not significant. In this study, we suggested some policy implications basing on this analytical results.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
• /
• v.9 no.6
• /
• pp.534-538
• /
• 2016

This paper discusses the characteristics and effects of dielectric inner-supports on discone antenna for broadband RF test chamber, and the verification has been performed by simulation. Several design parameters such as the thickness of the gap support, the position of the side support, and the thickness of the side support has been analyzed. The thickness of the gap support affected the reflection coefficient. An effect of the offset of the side support from the center was slight below 3 GHz and significant above 3 GHz. The thickness of the side support did not affect the reflection coefficient or the gain much. The performance of the fabricated discone antenna was in good agreement with the simulated results. This investigation of a dielectric support effects could be used to design a commercial discone antenna for broadband RF test chamber, focusing on electrical performance and mechanical stability.

• The Transactions of the Korea Information Processing Society
• /
• v.7 no.5
• /
• pp.1446-1455
• /
• 2000

• Journal of Family Resource Management and Policy Review
• /
• v.14 no.2
• /
• pp.35-58
• /
• 2010

The purpose of this study was to find the effects and problems in the support projects in multicultural family support centers and to present suggestions for its improvement. For this purpose, 10 specialists in 3 multicultural family support centers in Daegu, who organize and operate projects for female immigrants and their families, were interviewed via focus groups and then interviewed in-depth. The major findings were as follows: 1) the effect of the support projects was an increase in participation and concern of female immigrants and their families; 2)problems of the support projects included lack of flexibility of the projects, and overlap of projects among centers. 3)The results of the study suggest improved operation by extending the support networks to other support centers and facilities within the community, increasing the individualized programs based on their specialties, and promoting integrated projects (such as combining language courses and cultural programs, family-support programs and cultural events). Further studies will be extend to find out model cases from support projects of several centers, expand them to other centers, and verify its effects on operating projects.