• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.12
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• pp.620-627
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• 2017

An open sharing market is a market providing a sharing business. It provides open sharing services handling various products, unlike existing sharing services providing specific products. Sharing under an open sharing market can include all products that are difficult for customers to deal with, and provides fluidity of trade through negotiating sharing periods and costs among sharers. There are many variant elements when you provide sharing services for various products. Therefore, in this paper, we propose an extensible architecture that can reflect the variant elements in open sharing markets. We expect the proposed architecture can continuously improve the extensibility of sharing services for various products, because we design sharing services as components to efficiently manage and provide various sharing services, and provide dynamic binding of variant elements.

• Proceedings of the Korea Information Processing Society Conference
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• 2009.04a
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• pp.1170-1173
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• 2009

OpenAPI와 매쉬업(Mashup)은 현재 발전해가고 있는 웹 2.0을 이루는 중요한 기술이다. OpenAPI의 수는 기하급수적으로 증가하고 있기 때문에, OpenAPI에 대한 검색시스템은 반드시 필요하게 되었다. 대표적인 OpenAPI 검색은 Programmableweb과 Popfly에서 제공하고 있으며, 이들의 제한점을 보완한 OpenAPI 검색 시스템이 연구되고 있다. OpenAPI 검색 시스템은 웹서비스 검색 시스템을 확장하여 개발되었지만, 다양한 OpenAPI의 프로토콜을 지원하지 못한다. 따라서 본 논문은 효과적인 OpenAPI 검색 시스템에서 OpenAPI의 다양한 프로토콜을 포함할 수 있는 통합 정보모델을 구축을 목표로 한다. 개발된 OpenAPI 통합모델은 OpenAPI 및 매쉬업 가능 서비스 검색에 활용될 수 있다.

• Journal of Advanced Navigation Technology
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• v.18 no.5
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• pp.524-531
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• 2014

In this paper, we have proposed the processing and analyzing the linked open data (LOD), a kind of big-data, using resources of cloud computing. The LOD is web-based open data in order to share and recycle of public data. Specially, we defined the InfograaS (Info-graphic as a service), new business area of SaaS (software as a service), to support visualization technique for BA (business analytics) and Info-graphic. The goal of this study is easily to use it by the non-specialist and beginner without experts of visualization and business analysis. Data visualization is the process to represent visually and understand the data analysis easily. The purpose of data visualization is to deliver information clearly and effectively by chart and figure. The big data of public data are shared and presented in the charts and the graphics understood easily by various processing results using Hadoop, R, machine learning, and data mining of open source and resources of cloud computing.

• Journal of Digital Convergence
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• v.11 no.7
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• pp.215-223
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• 2013

As cloud computing is activated, a variety of cloud services are being distributed. However, to use each different cloud service, you must perform a individual user authentication process to service. Therefore, not only the procedure is cumbersome but also due to repeated authentication process performance, it can cause password exposure or database overload that needs to have user's authentication information each cloud server. Moreover, there is high probability of security problem that being occurred by phishing attacks that result from different authentication schemes and input scheme for each service. Thus, when you want to use a variety of cloud service, we proposed OpenID based user authentication scheme that can be applied to a multi-cloud environment by the trusted user's verify ID provider.

• Journal of Information Technology Services
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• v.15 no.2
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• pp.93-106
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• 2016

Recently, Open Course Ware service area which offers free lecture materials has been steadily growing. This change comes from a paradigm shift of education service caused by the progress of ICT and a role change of consumers. Knowledge creation from higher educational institutions is slow compared to change of society. Therefore, consumers escape from one-sided education, and perform a new role of knowledge generation. Nevertheless, there is not much of academic research of Open Course Ware. Consequently, the paper is dedicated to empirical study on effect of perceived value, information system quality and brand trust on intention to continuous use. As implications for the research, as a practical point of view, the results-an economic side that offers contents for free of charge, a contents side that is fresh, various and substantial, a systematic side that makes customers to use the system easily, a service side which takes charge of customers support and brand trust affect satisfaction and intention to continuous use - can be used for establishment of executive strategies.

• Journal of Advanced Navigation Technology
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• v.14 no.5
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• pp.737-744
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• 2010

A Social Network Service(SNS) is the best attracting internet business model and serviced in the several countries. The Facebook is the most popular SNS in a foreign country and the Cyworld is most popular one in Korea. In this paper, after investing and analyzing the existing Social Network Services, I present a new OpenU Social Network Service based on Web 2.0 concepts. This is a next generation internet platform which can be communicated with real-time chatting and share d data and talked during seeing data by collaboration functions OpenU's main characteristics and functions by screen design and implementations are explained. And also OpenU's excellence by comparing with other SNSs system is presented.

• Proceedings of the Korea Contents Association Conference
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• 2008.05a
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• pp.587-590
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• 2008

The Web 2.0 is mean to Web as Platform, as the platform provided various service using a data on webs by opening information. That is, it leads to the sharing and participation of information among internet users. In this paper, we research web technology for embedded computers which be supplied data and services to implement Ubiquitous computing. Therefore, we designed Open API service platform used the embedded system for the sharing and opening of web 2.0 trends. This designed platform is provided to internet users with various services and information in real-time.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.05a
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• pp.63-65
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• 2014

Open source software has a feature that offers its service by the subscription method without getting a license fee. Therefore, this business style needs a different form of estimate criteria from other proprietary software, which is paid by license fees and maintenance service fees. However, consumers, including the public sector, don't understand this feature. This problem has kept the open source software business from attaining prosperity. I would like to provide a model for the estimate criteria that can apply to the open source software business by investigating and developing various advanced research and market examples.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.16 no.1
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• pp.81-97
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• 2012

The objective of this paper is to investigate the 'state of the art' of the interdomain routing protocol BGP. First, BGP is critically reviewed focusing on the BGP policy and decision making process. And then the problems which still remain as open questions are investigated in the areas of 1) protocol stability, 2) traffic engineering and 3) quality of service. The recent research trend to answer the open questions is discussed.

• IEMEK Journal of Embedded Systems and Applications
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• v.3 no.4
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• pp.198-206
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• 2008

Internet protocol television (IPTV), one of the most emerging services, offers multimedia streaming services with security, reliability, and relevant quality of service (QoS)/quality of experience (QoE). It provides added values to all the involving players and also brings technical and business challenges to them. For IPTV services, we expect to adopt the next generation network (NGN) environment for high quality and the Web technologies for personalization to meet the customer's necessity. Web can provide an open, flexible, and agile platform. Therefore, in this paper, we propose personalized IPTV services based on Web-based open platform in NGN environment and present functional architecture for Web-based personalized IPTV services. Technical issues for deploying the proposed IPTV services using Web are also provided. The objective of this paper is to analyze the critical architectural issues for developing viable and feasible networking platform models for personalized IPTV services.