• Journal of the Korean Society for Library and Information Science
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• v.44 no.1
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• pp.243-265
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• 2010

This paper strives to shed a light on open access journals as academic resources for libraries and repositories. It also seeks the measure for the evaluation of information resources. It first attempts to draw outcomes and suggestions on the basis of the issues and implications identified through analysis into aspects of management, service, and infrastructure of repositories. For this task, research methods such as interviews and on/offline literature review were employed. Specific projects were analyzed via literature and website review, although not detailed in nature. Next, the paper discusses issue such as the current quality measures of OAJ. For this, a thorough comparison on the background, outlines and characteristics of the projects and an analysis of the specifics of each project were conducted as well.

• Journal of Korean Library and Information Science Society
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• v.49 no.3
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• pp.283-305
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• 2018

Although academic library budgets have been decreasing, the rates of print and electronic journal subscription price have consistently increased. In response to this, as part of efforts to ensure access to foreign academic materials, the Ministry of Education and Korea Education & Research Information Service (KERIS) have initiated and operated Foreign Research Information Center (FRIC) since 2006, pursuing shared acquisition and sharing of foreign print journals. This study investigates the roles/values, issues raised by stakeholders, improvements in services, and new service elements of FRIC through the in-depth interviews with librarians in charge of FRIC in addition to examining its current state. The findings show that FRIC has contributed to sharing of academic materials and to promoting research. However, it was also found that the five types of stakeholders (i.e., the Ministry of Education/KERIS, universities/libraries, users, FRICs, and publishers/agencies) have diverse issues and problems with FRIC. Therefore, this study makes some suggestions to address the issues in terms of policy, system, management, and service.

• Korean Management Science Review
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• v.22 no.1
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• pp.179-197
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• 2005

This study examines market acceptance for DMB service, one of the touted new business models in Korea's next-generation mobile communications service market, using adoption end diffusion of innovation as the theoretical framework. Market acceptance for DMB service was assessed by predicting the demand for the service using the Bass model, and the demand variability over time was then analyzed by integrating the innovation adoption model proposed by Rogers (2003). In our estimation of the Bass model, we derived the coefficient of innovation and coefficient of imitation, using actual diffusion data from the mobile telephone service market. The maximum number of subscribers was estimated based on the result of a survey on satellite DMB service. Furthermore, to test the difference in diffusion pattern between mobile phone service and satellite DMB service, we reorganized the demand data along the diffusion timeline according to Rogers' innovation adoption model, using the responses by survey subjects concerning their respective projected time of adoption. The comparison of the two demand prediction models revealed that diffusion for both took place forming a classical S-curve. Concerning variability in demand for DMB service, our findings, much in agreement with Rogers' view, indicated that demand was highly variable over time and depending on the adopter group. In distinguishing adopters into different groups by time of adoption of innovation, we found that income and lifestyle (opinion leadership, novelty seeking tendency and independent decision-making) were variables with measurable impact. Among the managerial variables, price of reception device, contents type, subscription fees were the variables resulting in statistically significant differences. This study, as an attempt to measure the market acceptance for satellite DMB service, a leading next-generation mobile communications service product, stands out from related studies in that it estimates the nature and level of acceptance for specific customer categories, using theories of innovation adoption and diffusion and based on the result of a survey conducted through one-to-one interviews. The authors of this paper believe that the theoretical framework elaborated in this study and its findings can be fruitfully reused in future attempts to predict demand for new mobile communications service products.

• Journal of Korean society of Dental Hygiene
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• v.12 no.2
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• pp.355-363
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• 2012

Objectives : The purpose of this study was to examine the influential factors for denture-wearing elderly people's denture satisfaction and subjective oral health and the relationship between the two in an effort to provide some information on the oral health promotion of the elderly. The subjects in this study were 192 senior citizens who were residing in the city of Busan and were wearing denture. Methods : The collected data were analyzed by the statistical package SPSS 18.0. To see whether there would be any differences in subjective oral health awareness according to general characteristics and denture-related characteristics, $x^2$-test was carried out, and t-test or one-way ANOVA involving Duncan post-hoc analysis was utilized to look for any possible gaps in denture satisfaction according to those characteristics. Results : 1. Concerning oral health awareness by general characteristics, there were significant differences according to gender and the form of health insurance subscription. 2. As for subjective oral health awareness by denture-related characteristics, there were significant gaps according to denture-washing frequency. 3. Regarding denture satisfaction by general characteristics, there were significant differences in satisfaction with denture fixation according to living arrangements. 4. As to denture satisfaction by denture-related characteristics, there were significant differences in satisfaction with mastication and with fixation according to the type of denture. 5. Better subjective oral health awareness led to better satisfaction with mastication, better satisfaction with fixation and better aesthetic satisfaction. 6. In relation to subjective oral health awareness and denture satisfaction, that had a significant relationship to satisfaction with mastication and with fixation. Conclusions : The above-mentioned findings showed that the denture satisfaction of the denture-wearing senior citizens was linked to their subjective oral health awareness. Therefore it will be possible to improve denture-wearing elderly people's quality of life when oral health plans geared toward boosting their denture satisfaction are carried out.

• Journal of Intelligence and Information Systems
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• v.10 no.2
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• pp.111-131
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• 2004

Software change is an essential operation for software evolution. To maintain the system competently, managers as well as developers must be able to understand the structure of the system but the structure of software is hidden to the developers and managers who need to change it. In this paper, we present a system (OntCIA) for supporting change impact analysis for rating and billing domain based on the semantic web technology. The basic idea of OntCIA is to build a domain knowledge base using an OWL ontology and RDF to implement change impact analysis system that would support the managers and software developers in finding out information about structure of large software system. OntCIA allows users to incrementally build an ontology in rating and billing domain and provides useful information in response to user queries concerning the code, such as, for example 'Find the modules which have a role for confirming new subscription'. The strengths of OntCIA are its architecture for easy maintenance as well as semantic indexing by automatic reasoning.

• The Journal of the Korea Contents Association
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• v.13 no.5
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• pp.253-261
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• 2013

This study analyzed the preparation characteristics for old age of the baby boomers by the framework of the multi-pillar pension system. Analysis results are as follows. First, multi-pillar pension system's subscription rates of baby boomers was public pension 59%, private pension 11.5% and retirement pension 1.5%. The baby boomers isn't ready for old age life. Second, women and people with the low level of education are less prepared for old age. Third, people in a bad health state are less prepared for old age. Forth, low-income people are less prepared for old age. We must support baby boomers' preparations for old age by establishing income security system for old age. We must establish public pension support policy for the people of the low level of education and economic hierarchy, women, bad health status people, and must introduce universal old-age allowance policy for guaranteeing the minimum income of baby boomers.

• The Journal of the Korea Contents Association
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• v.8 no.1
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• pp.152-159
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• 2008

In this paper, we have studied a new method in which multimedia message can be processed effectively in SIP(Session Initiation Protocol)-based Instant Messaging service. Total system is composed of multimedia message server, presence server and user system. To provide effectively message informations such as number of messages stored in the multimedia message server, waiting status and message types to users, we have proposed a new method which can be a substitute for message waiting indication event package. In our proposed method, when changes of messages status informations occur, these informations are sent to the presence server, and can be transferred as a separate tag within notification message. The presence server processes subscription requests and notifications, and efficiency can be improved as it provides both message status informations and several communication status informations such as on-line status to service users. Partial publication is used in our system to improve data transfer efficiency more between user system and the presence server. The performance of our proposed model is evaluated by experiments measuring multimedia message transfer speed and server processing time.

• Convergence Security Journal
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• v.17 no.3
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• pp.51-57
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• 2017

VOD service provides an additional revenue for broadcasting companies in addition to the existing subscription fees and advertisement-based revenue. Therefore, each broadcasting company develops its own VOD service and performs frequent improvement work. This leads to the development of new VOD services, so developers are considering ways to effectively handle the frequent development needs. In this background, we conducted an underlying research to apply the feature-oriented analysis model to the development of VOD service. The feature-oriented analysis model used in this study is the Feature-Oriented Domain Analysis (FODA) developed by SEI of Carnegie Mellon University. FODA provides a tool for specifying a feature model of a software domain, based on which developers determine the configuration of a software with customers. This study developed a feature model of the VOD service domain and devised the functionalities and testcases in an integrated manner with the feature model. Additionally, we proposed a VOD service development process utilizing the feature model, function specification, and testcases.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.25 no.3
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• pp.215-234
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• 2014

The purpose of this study is to investigate whether Google Scholar (GS) can substitute Web of Science (WoS) for those who don't have access to the subscription-based indexing service and if users feel GS is useful for scholarly information. To achieve the research purpose, the study evaluates both quantitative and qualitative aspects of the two databases. The major results through statistical analysis show that GS indexes much more records and citations for LIS journals than WoS(p < .01), but users' feedback about GS is not better than those about WoS.

• Journal of the Korea Convergence Society
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• v.9 no.6
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• pp.61-68
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• 2018

This paper propose the remote monitoring system using LoRa networks about storm overflow chamber, which is a device designed to discharge rainwater directly to a sewage treatment plant when it reaches a certain amount of rainfall during precipitation. In this system, when the information produced by the sensor is transmitted to the LoRa network server and updated, the application server can automatically receive data through the implemented communication interface. The application server carries out management functions of storm overflow chamber devices and subscription information, collects measured flow rate and opening-closing information, and provides statistical information using the collected data. The android app performs a firebase-based notification function to prompt the user of malfunctioning of the storm overflow chamber device.