• Proceedings of the Korean Information Science Society Conference
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• 2005.11b
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• pp.223-225
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• 2005

근래 들어 생명과학 및 생명정보에 대한 관심이 높아지면서 활발한 연구 활동의 결과물로 많은 정보를 얻을 수 있게 되었다. 또한 방대한 생명정보를 분석할 수 있는 많은 알고리즘이 개발되었으며 웹 기술이 발달함에 따라 생명정보의 활용도가 높아져서 다양한 방법으로 정보서비스가 가능하게 되었다. 특히 XML, SOAP, WSDL, UDDI를 사용하는 Web Services는 분산 컴포넌트 기반의 컴퓨팅 기술로 최신의 기술이다. 이에, 바이오인포매틱스센터에서는 CCBB, NCBI, EBI, DDBJ 등의 사이트에서 배포한 Web Services에 접근하여 입력 값과 출력된 결과를 확인 및 유지하고, 객체들의 흐름을 볼 수 있는 프로그램으로 One-Stop Web Services를 개발하였다. One-Stop Web Services는 GUI 환경의 인터페이스로 사용자에게는 용이한 실행 환경을 제공하므로, Web Services 개발자에게 사용자 인터페이스 개발 부담을 줄일 수 있다.

• Journal of Korea Society of Industrial Information Systems
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• v.16 no.2
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• pp.125-137
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• 2011

This study empirically examined the structural relationships among service quality of internet real estate information web-sites, trust, customer satisfaction and reuse intention. In order to achieve the purpose, survey method was applied using a sample of 293 real estate information web-site users. The results of this study showed that service quality of real estate web-sites had a significant effect on trust and customer satisfaction. And, the trust of web-sites have influenced on customer satisfaction and reuse intention. Finally, the customer satisfaction of estate information web-sites had a significant positive effect on reuse intention.

• IE interfaces
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• v.19 no.3
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• pp.190-201
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• 2006

With the rapid growth in the demand and supply of web service, the search for superior services has become a prominent issue. Furthermore, much emphasis and attention are being placed on composite web services, where individual services are combined together to form a single workflow to satisfy the demand of the customers. In today's era of excessive expansion of web services, this study intends to propose the execution plan architecture for composite web services to accomplish the following three goals. The first goal is to derive a feasible plan which maximize user satisfaction for composite web services by implementing an execution plan architecture that reflects the Quality of Service criteria. Secondly, this study also aims at analyzing and selecting the indexes that adequately reflects its quality and its nonfunctional property. Finally, this study intends to apply the concept of constraint satisfaction problem and heuristics to reduce the execution duration of the process.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.18 no.4
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• pp.111-122
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• 2008

Web service is defined to support interoperable machine to machine interaction over a network and defined as distributed technologies. Recently in web service environment, security has become one of the most critical issues. An attacker may expose user privacy and service information without authentication. Furthermore, the users of web services must temporarily delegate some or all of their behalf. This results in the exposure of user privacy information by agents. We propose a delegation model for providing safety of web service and user privacy in ubiquitous computing environments. In order to provide safety of web service and user privacy, XML-based encryption and a digital signature mechanism need to be efficiently integrated. In this paper, we propose web service management server based on XACML, in order to manage services and policies of web service providers. For this purpose, we extend SAML to declare delegation assertions transferred to web service providers by delegation among agents.

• Annual Conference of KIPS
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• 2005.11a
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• pp.635-638
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• 2005

근래 들어 생명과학 및 생명정보에 대한 관심이 높아지면서, 활발한 연구 활동의 결과물로 많은 정보를 얻을 수 있게 되었다. 방대한 생명정보를 분석할 수 있는 많은 알고리즘이 개발되었으며, 웹 기술이 발달함에 따라 생명정보의 활용도가 높아져서 다양한 방법으로 정보 서비스가 가능하게 되었다. Web Services는 XML, SOAP, WSDL, UDDI를 사용하는 분산 컴포넌트 기반의 컴퓨팅 기술로 서비스를 제공하는 Service Provider와 서비스 제공자의 정보를 저장하는 Service Registry 및 서비스를 사용하는 Service Requestor로 구성된다. 본 논문에서는 바이오인포매틱스 분야에서 Web Services를 구성하는 모든 요소들을 개발한다. 특히 One-Stop Web Services는 GUI 환경의 인터페이스로 사용자에게는 용이한 실행 환경을 제공하고 있으며, Web Services 개발자에게는 사용자 인터페이스 개발 부담을 줄일 수 있다.

• Proceedings of the IEEK Conference
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• 2003.11b
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• pp.179-182
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• 2003

In this paper, we developed those OpenLS(Open Location Service) Core Services based on the Web-Service, because Web-Service environments provide a suitable method to gather requested information in an appropriate way. The proposed architecture cooperate with OpenLS Core Services( Directory Service, Location Utility Service and Router Determination service) and is an interoperability one - it identifies those global elements of the global Web-Services network that are required in order to ensure interoperability between Web-services. In this paper, a new architecture of OpenLS Core Services is proposed and tested in OpenLS Core Services environments.

• Journal of Digital Convergence
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• v.12 no.10
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• pp.291-297
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• 2014

Web service is a standardized software technology which enables interoperability for various applications regardless of operating systems and programing languages through public networks such as the internet and by web service standards. It is distributing computer services that enable a web environment by discovering and providing necessary services. However, there are drawbacks when selecting services for new web environments because current various search methods are based on performance of those services. Even when the performance of the service is improved by selecting web services based on either the service performance or when the new services are discovered, lack of resources causes the web services to get pushed back from the current service list. Therefore, in order to resolve resource allocation issues when selecting web services, this study offers the suitable services for the clients by applying improved services based on scalable information and by applying the information obtained by the clients when requested.

• Journal of Intelligence and Information Systems
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• v.10 no.3
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• pp.59-72
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• 2004

The range of Internet usage is drastically broadened and diversed from information retrieval and collection to many different functions. Contrasting to the increase of Internet use, the efficiency of finding necessary information is decreased. Therefore, the need of information system which provides customized information is emerged. Our research proposes Web Service based recommendation system which employes inference engine to find and recommend the most appropriate products for users. Web applications in present provide useful information for users while they still carry the problem of overcoming different platforms and distributed computing environment. The need of standardized and systematic approach is necessary for easier communication and coherent system development through heterogeneous environments. Web Service is programming language independent and improves interoperability by describing, deploying, and executing modularized applications through network. The paper focuses on developing Web Service based recommendation system which will provide benchmarks of Web Service realization. It is done by integrating inference engine where the dynamics of information and user preferences are taken into account.

• Journal of Korea Multimedia Society
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• v.18 no.11
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• pp.1351-1357
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• 2015

This paper proposes and implements a mobile service and web service integration for utilizing public bicycle sharing system NUBIJA. The NUBIJA system is operated by Changwon City, GyeongNam since 2008 and maintains 247 unattended bicycle sharing terminal on the city. Average users per day of the NUBIJA are more than 8,000 and many users want to get more services from their mobile phones. We implemented realtime mobile bicycle rental and return information service. The informations are acquired from each terminal kiosks and we integrated the information and location based services(LBS) on iOS and Android platform. In this paper, we described an integration services between web and mobile application and shows graphical user interface for highly customized on mobile platforms.

• Journal of the Korean Geographical Society
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• v.42 no.5
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• pp.788-807
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• 2007

To better publish geographical information on the Web, it is important to capture how Web technologies are changing. For a recent decade, Semantic Web has been developed by incorporating ontologies into the current Web, with an aim to make computers understand rather than simply display. Ontology, an explicit specification of a conceptualization, and the Semantic Web grounded on the ontology, have the potential for effective sharing and appropriate retrieval of geographical information. This paper describes a Semantic Web Service over the mobile Web that can offer pertinent tourism information according to user contexts. To do this, a tourism ontology was formalized in the PARA(Place-Attraction-Resource-Activity) ontology model by organizing tourist places, tourist attractions, tourism resources, and activities. Locational relationships between tourist places were also included in the PARA ontology model to take into account the movements of tourists on a railway network. The XML(Extensible Markup Language) Web Service in the middle tier manages the client-side request for information retrieval and the corresponding server-side response from the data provider. The PARA ontology was integrated into the XML Web Service for the concept-based discovery of tourism information. The applicability of the proposed system was tested through a simulation experiment for Tokyo tourism.