• 한국정보통신설비학회:학술대회논문집
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• 한국정보통신설비학회 2006년도 하계학술대회
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• pp.73-76
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• 2006

International Roaming is a kind of telecommunication service that enables subscribers use the same mobile number when they go abroad and access other service provider's network. International roaming call is made through three network parts-home (original service provider) network, intermediate network, and local (overseas service provider) network. It is not possible to monitor every section of whole roaming service network because service providers do not provide their network management information to other service providers. The limitation causes harsh problem when a service anomaly arises and operators have to confirm the reason of failure. To solve this problem, we propose a scheme that deduces roaming service status of each overseas service provider using internal network management information. SK telecom implemented a international roaming service management system based on the scheme using performance measurement of signaling points, roaming service nodes, and charging data from existing network management systems.

• 한국조리학회지
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• 제8권2호
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• pp.37-58
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• 2002

Up to these days, hotels are assumed to compete each other. Due to the spread of high quality the hotel restaurants have begun to face an intensive competition. Hotel food at Beverage have become the more competitive along with fund, good price, service, quality food, and management know-how. It causes the hotel restaurants confront with management difficulties. In order to overcome the management difficulties, hotel restaurants have to improve their marketing abilities and especially to improve their service quality. For this, it is necessary fur hotel restaurants to investigate how their service providers and receivers recognize their service quality. In this research, we examined the cognitive three types of cognitive gaps among customers, service providers, and managers both on the service quality and on the positioning of hotel restaurants. Their cognitive gaps proved negatively correlated with hotel's performance. This research suggests the following findings. Firstly, the competitiveness of hotel restaurant depends on the accurate communication and consensus among managers, service providers, and customers. Secondly, using the information about cognitive gaps recognized, each hotel restaurant should develop concrete marketing plans and strategies with a careful consideration about its current competitive position and management condition.

• 경영정보학연구
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• 제11권1호
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• pp.197-215
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• 2009

유비쿼터스 기술이 본격화됨에 따라 민간주도적 u-서비스 개발이 활발히 추진되고 있다. 본 논문에서는 복합단지 공간에서 활동하는 모든 참여자들을 위한 인터액티브(Interactive) u-서비스 모델 개발방법을 제시하고자 한다. 웹 2.0트렌드는 단지 내 서비스 제공자의 일방적인 정보 또는 컨텐츠 푸쉬(Push)뿐만 아니라 사용자의 참여에 의한 정보 창출과 공유를 전제로 하고 있다. 여기서 사용자 주도적 u-서비스는 다른 사용자뿐만 아니라 서비스 제공자에게 맞춤형 서비스를 창출하는데 매우 유용한 정보를 제공할 것이다. 이와 같은 인터액티브 u-복합단지에서는 정보 제공자가 사용자가 되고 정보 사용자가 정보 제공자가 되어 네트웍의 효과가 극대화되는 정보밀집형 공간이 될 것이다. 또한, 복합단지라는 제한된 장소적 특성을 고려해 볼 때 인터액티브 u-서비스가 제공하는 정보 또는 컨텐츠의 공유 및 활용의 효과가 매우 클 것으로 기대할 수 있을 것이다.

• Journal of Preventive Medicine and Public Health
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• 제40권4호
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• pp.291-296
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• 2007

Objectives : To explore the information sources and knowledge on infant vaccinations of pro-vaccination community members and anti-vaccination community members on the internet. Methods : An online survey of 245 parents from three pro-vaccination communities and 92 parents from one anti-vaccination community was conducted from June 7 to June 23, 2006. Results : Parents from pro-vaccination communities usually gained the information regarding vaccination efficacy and risk mainly from healthcare providers (49.8%) and mass media (47.7%). Pro-vaccination community members considered healthcare providers as the most credible sources of information on vaccination, whereas the anti-vaccination community members usually gained their information regarding vaccine efficiency and risk from Internet child-care cafes and online vaccination communities. Parents of the anti-vaccination community considered the internet as the most credible information source (77.6% for efficacy, 94.8% for risk). In addition, the major reason why anti-vaccination community members didn't vaccinate and, will not vaccinate, was concern about possible side effects of the vaccine. The knowledge level on infant vaccination, education and economic status was higher in the anti-vaccination community. Conclusions : On-line communities concerned with vaccination are getting popular. The influence of anti-vaccination parents on the Internet is expected to be high. The government and healthcare providers need to increase their efforts to improve the credibility of information about vaccination. Our findings suggest that online communication regarding vaccinations needs to be considered as a means to increase vaccination rates.

• 정보보호학회논문지
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• 제20권6호
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• pp.237-249
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• 2010

최근 다양한 사이버 침해사고의 개인정보 유출 사례를 살펴보면 공격 대상이 서비스 제공자를 대상으로 하고 있지만 실제적인 피해 대상은 사용자라고 할 수 있다. 정당한 서비스 계약을 체결하였음에도 불구하고 정상적인 서비스를 받을 수 없거나 서비스를 위해 제공한 개인정보가 유출되는 피해가 발생하고 있다. 이에 따라 사업자 및 사용자간 제공되는 서비스에 대한 SLA와 관련하여 보안SLA가 크게 주목받고 있다. 특히 안타바이러스 서비스를 제공하는 서비스 제공자의 경우 보안SLA를 통해 보다 높은 수준의 보안서비스를 제공해야 한다. 그러나 국내에서는 보안SLA와 관련된 연구가 미비하여 유지보수 수준의 SLA만 제공되는 상황이다. 따라서 본 논문에서는 안티바이러스 시스템의 보안 기능을 분석하여, 보안SLA의 지표를 개발하고 보안기능별 등급화 방안을 제안한다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제9권3호
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• pp.843-871
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• 2015

Cloud computing evolve as a cost effective business model for IT companies to focus on their core business without perturbing on infrastructure related issues. Hence, major IT firms and Small & Medium Enterprises (SME) are adopting cloud services on rental basis from cloud providers. Cloud Service level agreements (SLA) act as a key liaison between consumers and providers on renting Anything as a Service (AaaS). Design of such an agreement must aim for greater profit to providers as well as assured availability of services to consumers. However in reality, cloud SLA is not satisfying the parties involved because of its inherent complex nature and issues. Also currently most of the agreements are unilateral to favour the provider. This study focuses on comprehensive, 360-degree survey on different aspects of the cloud service agreements. We detailed the life cycle of SLA based on negotiation, different types of SLA, current standards, languages & characteristics, metrics and issues involved in it. This study will help the cloud actors to understand and evaluate the agreements and to make firm decision on negotiation. The need for standardized, bilateral, semantic SLA has also been proposed.

• 한국IT서비스학회지
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• 제12권1호
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• pp.215-227
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• 2013

Currently, improved quality of life has facilitated consumers' indulgence in a diverse range of cultural cuisines. Consequently, the evolvement of the food service industry has been developing itself according to the diversified needs of the consumers. In particular, a great amount of interest has been expressed in a new form of food service known as family restaurants. Family restaurant service providers have begun to provide information regarding family restaurant usage, including various foods and services, through their websites in order to yield better service to consumers. For family restaurant service providers, comprehending the consumers' purpose of using the company's websites is a crucial managerial issue and it plays an important role in the development of good marketing strategies. There exists a distinction in websites usage purposes according to the different values of consumers; the hedonic value and the utilitarian value. When consumers gain satisfaction through family restaurant websites usage, this satisfaction extends to word of mouth communication effect. In order to develop good Internet marketing strategies, this study is prepared to assist family restaurant service providers understand the relationships among customer value, usage purpose, customer satisfaction, and word of mouth communication with regards to the family restaurant websites. The results of this study provide useful implications to understand consumer behavior and to develop marketing strategies in a family restaurant websites.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제14권3호
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• pp.1014-1025
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• 2020

Cloud computing services changed the way the data are managed across the healthcare system that can improve patient care. Currently, most healthcare organizations are using cloud-based applications and related services to deliver better healthcare facilities. But architecting a cloud-based healthcare system needs deep knowledge about the working nature of these services and the requirements of the healthcare environment. The success is based on the usage of appropriate cloud services in the architecture to manage the data flow across the healthcare system.Cloud service providers offer a wide variety of services to ingest, store and process healthcare data securely. The top three public cloud providers- Amazon, Google, and Microsoft offers advanced cloud services for the solution that the healthcare industry is looking for. This article proposes a framework that can effectively utilize cloud services to handle the data flow among the various stages of the healthcare infrastructure. The useful cloud services for ingesting, storing and analyzing the healthcare data for the proposed framework, from the top three cloud providers are listed in this work. Finally, a cloud-based healthcare architecture using Amazon Cloud Services is constructed for reference.

• 한국정보시스템학회지:정보시스템연구
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• 제29권1호
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• pp.1-22
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• 2020

Purpose Along with increasing use of mobile devices, the sharing economy platform services, which generate profits by sharing products owned or labor, have been activated. A representative example of the sharing economy platform service is Airbnb, which connects providers having idle residential space with users. The results revealed that the cases of superhosts and professional companies had a positive and negative effect on user satisfaction, respectively. Based on signaling theory, this study drew the following implications: residential space providers should make an effort to meet the superhost conditions suggested by Airbnb, and offering residential spaces by individual suppliers rather than professional accommodation companies can more heighten user satisfaction. Design/methodology/approach Because sharing behavior is promoted through trust between interested parties, this study aimed to verify the effects of provider characteristics on user satisfaction in a sharing economy platform service. Specifically, it analyzed user satisfaction, according to host attributes (i.e., "superhost or not," gender, and "professional company or not") among the characteristics of Airbnb suppliers. Findings The results revealed that the cases of superhosts and professional companies had a positive and negative effect on user satisfaction, respectively. Based on these analyses results, this study drew the following implications: residential space providers should make an effort to meet the superhost conditions suggested by Airbnb, and offering residential spaces by individual suppliers rather than professional accommodation companies can more heighten user satisfaction.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2002년도 추계종합학술대회
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• pp.182-186
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• 2002

이동통신 사용인구의 급증함에 따라 가입자의 욕구를 충족시켜 줄 수 있는 서비스도 그만큼 더 늘어나고 있다. 그리고 서비스 업체의 통신망 성능(Network Performance)과 서비스 품질 향상(Quality of Service)에 많은 인력의 노력과 투자를 집중하고 있는 시기에서 효과적으로 네트워크를 관리하고 분석하여 기지국 및 이동통신 교환기 시스템을 원활하게 Maintenance를 지원할 수 있는 Worst cells 프로그램을 개발하였다. 각 기지국의 소통율(Establishment Rate)과 절단율(Dropped Call Rate)의 통계를 측정하여 관리함으로서 장애를 미리 예측하여 조치를 취할 수 있는 기지국 성능 분석 프로그램 개발로 인하여 시스템 공급 업체(system provider)의 신뢰도와 서비스업체(service provider)의 이미지 제고에 기여 할 수 있다고 본다.