• Journal of Korea Spatial Information System Society
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• v.7 no.3 s.15
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• pp.13-24
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• 2005

This paper proposes a model for the location information grading policy. Location information grading policy is that government would give a public notice of criterion for location information quality, and location information operators should elucidate the grade of provided location information. As the quality grade of services is provided in the 'terms of use' with the detailed quality specification and quality range, the user can understand the quality of location information, and can select more suitable service for their purposes. Additionally, the qualiy grading policy can enforce the location information operators and location service providers to support more stable and reliable service quality. In this paper, we propose the model of location information grades, the typical classification of quality, and the realitic policy applying model. Recent enacted 'Location Information Law' are expected to activate korean information market. In this situation, proposed location information grading policy take a role in protecting location privacy and improving the reliability of location information services.

• Journal of the Korea Society of Computer and Information
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• v.14 no.10
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• pp.189-197
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• 2009

As the web service technology matures. research is focused on the composite web services that combine individual web services within an enterprise or between enterprises. Quality of service is the critical competitiveness factor in this mature technology stage where there are many services with similar functionalities differing only in some non-functional properties. Monitoring is the key component for the service quality management of a web service. A service quality monitoring system design using a broker is presented in this paper. OWL-S is used to specify the composite service process and a service policy (inputs and outputs of each service, quality attributes and values, etc.) built by WS-Policy is applied to the composite service process. If there is any discrepancy between the service policy and the monitored data, the service provider and the user are notified of it so as to take necessary measures. We have implemented a travel reservation system as an example of the presented design and the experimental results are shown. Average response time was monitored and the timeout policy was applied in the experiment.

• Journal of the Korean Data and Information Science Society
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• v.24 no.4
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• pp.941-948
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• 2013

We introduce the $P^M_{{\lambda},{\tau}}$ service policy, as a generalized two-stage service policy of the $P^M_{\lambda}$ policy of Bae et al. (2002) for an M/G/1 queueing system. By using the level crossing theory and solving the corresponding integral equations, we obtain the explicit expression for the stationary distribution of the workload in the system.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.4 no.2
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• pp.337-346
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• 2000

This paper was studied on policy direction of information service for aged welfare. An element on social changes is as follow: economic problem, medical problem, leisure problem, alienation problem. Solution of this problem needs information service. Information service is Telecommuting service, home shopping service, medical support service, medical information service, telemedical support service, internet service, and knowledge studying support service. The results of this study is as follow: First, aged welfare organization must be constructed. Second, Network for aged welfare must be constructed. Third an aged must be utilization of information service. Fourth, policy of nation must be changes. Fifth, information service of aged welfare must be developed.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2000.05a
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• pp.56-64
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• 2000

This paper was studied ell policy direction of information service for aged welfare. An element on social changes is as follow: economic problem, medical problem, leisure problem, alienation problem. Solution of this problem needs information service. Information service is Telecommuting service, home shopping service, medical support service, medical information service, telemedical support service, internet service, and knowledge studying support service. The results of this study is as follow: First, aged welfare oranization must be constructed. Second, Network foraged welfare must be constructed. Third an aged must be utilization of information service. Fourth, policy of nation must be changes. Fifth, information service of aged welfare must be developed.

• Journal of information and communication convergence engineering
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• v.8 no.3
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• pp.245-250
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• 2010

To support various bandwidth requirements for many kinds of devices such as PC, notebook, PDA, cellular phone, a transcoding proxy is usually necessary to provide not only adapting multimedia streams to the client by transcoding, but also caching them for later use. Due to huge size of streaming media, we proposed the 3 kinds of segmentation - PT-2, uniform, bitrate-based segmentation. And to reduce the CPU cost of transcoding video, we proposed the DQS service policy. In this paper, we simulate the combined our previous two researches that are bitrate-based segmentation and DQS(Degraded Quality Service) policy. Experimental results show that the combined policy outperforms companion schemes in terms of the byte-hit ratios and delay saving ratios.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.21 no.1
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• pp.59-70
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• 2010

To develop a policy for effective and efficient information services, it is necessary to perform studies that reflect multi-dimensional perspectives of various groups. For this, a literature review on the information service policies of other national digital libraries, focus group interviews of professionals from related fields, and a survey of library users and librarians are needed. This study is based on a survey that asks library users and librarians for their opinions regarding the NDL as a part of research projects to develop the NDL information service policy.

• East Asian mathematical journal
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• v.24 no.1
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• pp.45-55
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• 2008

We consider an M/G/1 queue with $P^M_{\lambda}$-service policy, which is a two-stage service policy. The server starts to serve with rate 1 if a job arrives to the sever in idle state. If the workload of the system upcrosses $\lambda$, then the service rate is changed to M and this rate continues until the system is empty. It costs to change the service rate to M and maintaining the rate. When the expectation of the stationary workload is supposed to be less than a given value, we derive the optimal value of M.

• Journal of the Korean Society for information Management
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• v.25 no.2
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• pp.69-97
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• 2008

Policy information is very valuable around the nation in its aspects of uniqueness, perofessionalism and specificity, so it has great significances to individual citizens. Therefore, it is necessary to prepare systematic instruments for anyone to have easy access to policy information owned by government and administrative institutions. And particularly, it is so impending to develop efficient policy information service(PIS) system. Indeed, however, Korea doesn't have yet established any policy or system to make policy information available on bloc to citizens. Thus, the purpose of this study is to conduct a survey to analyze actual profile of Korean policy information circulating institutions, and is also to analyze needs for domestic circulation of policy information, so that it can seek possible ways to consolidate domestic scattered policy information into a nationwide information system to improve national policy information infrastructure of Korea.

• Journal of the Korea Society of Computer and Information
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• v.21 no.12
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• pp.197-201
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• 2016

This study is a study on the recognition and policy direction of welfare service for the disabled. For this, it aims to draw implications about the policy direction of welfare service for the disabled using basic investigation of welfare for the disabled among $2^{nd}$, $3^{rd}$ community social welfare plans of Jeollanam-do. As study results, it was analysed that the demand of welfare service for the disabled is increasing from providing the past livelihood such as establishing the foundation for basic livelihood to customized welfare service such as supplying jobs for enhancing the quality of life of the disabled. That is judged to be caused by needs for human's basic rights according to economic development and improvement in income level, and it will be appropriate to set up the software-focused policy for the disabled individuals rather than to set up the hardware-focused policy like the past. Despite the implications like these, however, this study has limitation that its subject is restricted to D-gun, so henceforth it needs to draw more general conclusions through comprehensive research about more extensive regions.