• Convergence Security Journal
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• v.5 no.3
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• pp.9-14
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• 2005

In this treatise when, proposed to supplement studying contents relationship conversion service and cooperation studying service function to LMS that analyze existing e-learning model's limitation for ubiquitous environment e-learning model that can study regardless of, ubiquitously, some contents and do based on SCORM ubiquitous-network and next generation sensor technology etc.

• Proceedings of the Korean Information Science Society Conference
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• 2003.04c
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• pp.22-24
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• 2003

레거시 애플리케이션 시스템(이하 LAS: Legacy Application System)은 차세대 비즈니스 시스템들로 통합되어야 하는 가치 있는 자산이다. 이러한 LAS의 이점을 얻기 위해, 레거시 비즈니스 시스템을 역공학적으로 분석할 수 있다. 본 논문은 LAS의 폼으로부터 의미 있는 정보를 파악하여 다음 세대의 시스템에 통합될 수 있도록 객체단위로 분할하여 분석한 다음, 이러한 정보를 이용하여 재사용 및 재공학을 할 수 있도록 하기 위한 역공학적 객체 분석 프로세스(이하 FOAP)를 제안한다. 본 논문에서 제안하는 FOAP는 4단계 즉, 폼 사용사례 분석 단계, 폼 객체 분할 단계, 객체구조 모델링 단계, 객체 모델 통합 단계 등으로 구성되어있다. 폼 사용사례 분석 단계는 폼 구조 그리고 LAS와 사용자간의 상호작용 둥의 정보를 획득하는 단계다. 폼 객체분할 단계는 폼 정보를 의미 있는 필드들로 구분하는 단계다. 객체구조 모델링 단계는 폼 객체들간의 구조적 관계와 협력 관계를 파악하여 모델링하는 단계다. 마지막으로 객체 모델 통합단계는 객체 단위의 단위 모델들을 통합하여 추상화된 정보를 포함한 상위 수준의 통합 모텔을 유도하는 단계다. FOAP에 의해 결과적으로 생성된 객체 통합 모델은 역공학 기술자들의 LAS 이해와 LAS의 정보를 새로운 시스템에 적용하는데 있어 좀 더 용이한 효율성을 제공한다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.38B no.9
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• pp.765-774
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• 2013

In this paper, we present a cooperative compressed spectrum sensing scheme for correlated signals in decentralized wideband cognitive radio networks. Compressed sensing is a signal processing technique that can recover signals which are sampled below the Nyquist rate with high probability, and can solve the necessity of high-speed analog-to-digital converter problem for wideband spectrum sensing. In compressed sensing, one of the main issues is to design recovery algorithms which accurately recover original signals from compressed signals. In this paper, in order to achieve high recovery performance, we consider the multiple measurement vector model which has a sequence of compressed signals, and propose a cooperative sparse Bayesian recovery algorithm which models the temporal correlation of the input signals.

• Journal of the Korean Geographical Society
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• v.44 no.5
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• pp.647-660
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• 2009

Although tourism has been quite popular as development strategy, the outcomes may vary dependent upon managing stakeholders involved. Thus, stakeholder management has been the subject of growing research interests recently. Collaboration theory was suggested as an alternative to this question; however, collaboration theory may provide potential benefits, it lacks in consideration into stakeholder power relations. The purpose of this paper is two foleded. One is to examine critically collaboration theory in the context of tourism development, and address the necessity of stakeholder analysis framework, and the other is to provide the framework. This paper argues that careful analysis of stakeholders from diverse perspectives should be done in advance, and presents stakeholder analysis framework which consists of six analysis indicators: interest, perspective, power base(resource), involvement, influence, and legitimacy. The framework consists of three stages: (1) identifying stakeholder, (2) assessing stakeholder, and (3) establishing strategies. It is argued that the framework in this paper can be useful to analyze stakeholders and to set up strategy for more collaborative tourism development.

• Broadcasting and Media Magazine
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• v.20 no.3
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• pp.54-65
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• 2015

최근 네트워크와 연동된 스마트 기기들의 개발과 보급이 활발하게 이루어지고 있으며, 스마트 기기간의 연동을 통한 상호 협력적인 관계를 지능적으로 형성하는 사물인터넷이 큰 이슈가 되고 있다. 본 논문은 홈 내 스마트 기기 및 IoT 기기들의 기능들이 상호 공유되고 협력적으로 제어됨으로써, 더욱 창의적이고 혁신적인 서비스 구성이 가능한 사물인터넷 기반 스마트 홈 서비스 프레임워크를 제시한다. 본 논문에서는 스마트 홈 서비스를 위한 사물인터넷 기술을 소개하고, 홈 내 기기들의 구성 방법에 따른 스마트 홈 서비스 구성 모델을 제시한다. 또한, 상이한 프로토콜과 메시지 포맷을 사용하는 다양한 홈 기기들의 연동 방법, 효율적인 스마트 홈 서비스 개발을 위한 기기 자원 가상화 및 추상 API를 포함하는 스마트 홈 서비스 프레임워크 기술을 제시한다.

• Proceedings of the Korean Society for Information Management Conference
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• 2003.08a
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• pp.5-13
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• 2003

국내 대학도서관의 문헌복사 서비스는 90년대 후반부터 다양한 정보센터의 출현으로 해외사례와 비교하여 이용률이 지속적으로 증가해 온 것이 사실이다. 본 연구에서는 국내 대학도서관의 문헌복사 서비스에 대한 정량적 분석 및 대학도서관의 장서, 예산, 직원, 이용자 등의 환경요인과의 상관관계 분석을 통해 대학도서관간의 협력모델, 이용자의 서비스 만족도 향상 및 국내 상호대차 서비스의 활성화를 위한 방안을 제시하고자 한다.

• Information and Communications Magazine
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• v.28 no.12
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• pp.16-23
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• 2011

최근 스마트폰 확산과 함께 모바일 시장이 개방적인 PC진영으로 편입되면서 ICT 산업구조가 복잡한 개방적 생태계로 재편성되고 있다. 이에 본고에서는 가치 네트워크(Value Network) 관점에서 타 산업 사업자간 상생적 협력관계 구축을 통한 수익배분 모델 등 주요 글로벌 ICT 리더들의 사업전략을 분석하고, 단말 및 서비스 플랫폼을 중심으로 하는 새로운 ICT 생태계의 진화방향을 전망하고자 한다. 특히 앱스 토어를 기반으로 하여 단말 플랫폼을 확장하는 애플의 전략 과 웹을 기반으로 하는 서비스 플랫폼을 통해 이용자의 접점을 확장하는 구글의 사업전략을 비교 분석하여 향후 글로벌 ICT 산업의 전망과 시사점을 제시하고자 한다.

• The Journal of Society for e-Business Studies
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• v.27 no.1
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• pp.43-62
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• 2022

This paper is a study to analyze when ISV(independent software company) has more active participation in the platform ecosystem. According to previous studies, companies are active in technological innovation when they can appropriate the outcome of innovation and when they have complementary assets (marketing, manufacturing capabilities, etc.) that can convert the innovation into value. The effect of these two conditions to join platform ecosystem is investigated. The duplication between the ISV's product portfolio and platform service is also included as an independent variable. The two sample groups are composed of independent SW companies that signed a partner agreement with platform companies and non-participating companies in the platform. As a result of empirical study, it is found that the patent rights do not affect participation in the platform. The ISVs might have believed that the benefits from cooperation with platform companies are greater than the risks of exposure to innovative technologies and unique Biz models. On the other hand, downstream's capability and the duplication of product portfolio affect participation in the platform. If ISVs have the downstream capability to transform cooperation into value creation, ISVs are actively participating in the platform. In addition, cooperation is active when the product portfolio is complementary to platform service rather than competition. This study is the empirical study of open innovation between Korean independent software companies and digital platform companies. There are similar prior studies abroad, but there are no similar studies in Korea. It is meaningful in that the determinants of platform ecosystem participation were investigated through empirical analysis by composing a sample group of companies participating in the platform ecosystem and companies not participating in the platform ecosystem.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.17 no.5
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• pp.265-278
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• 2022

R&D projects for product development are crucial for ventures' growth and success. Current study summarizes existing studies that identify the relationship between startup ventures' R&D department, R&D investment, and R&D cooperation on product development performance, and highlights the effects of business model as well as the roles of R&D activities for product development project that have been traditionally emphasized. In order to consider the effects of business models that were not previously available, the effects of these factors on product development performance were comprehensively analyzed. The research results with 180 venture cases surveyed on venture companies in the growth stage in Korea, showed that the effect of product development project activities measured by R&D department, R&D investment and R&D cooperation on product development performance is not evident. However, the effect of business model on product development time and product development performance measured by product innovation was confirmed. In particular, it was found that the clarity and uniqueness of the business model interacted with the R&D investment to shorten the product development time and directly increase the innovativeness of the developed product. Based on these analysis results, the implications of this study, limitations of the study, and the future research directions were described.

• Journal of the Korean Crystal Growth and Crystal Technology
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• v.32 no.6
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• pp.246-250
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• 2022

An estimation method of glass viscosity using Lakatos model is one of the best way to calculate the viscosity of soda-lime glass. The glass viscosity is obtained by inputting a glass composition consisting of SiO₂, Al₂O₃, Na₂O, K₂O, CaO and MgO to the Lakatos model. A series of composition of glass bottles was obtained once a month for 10 months from a soda-lime glass bottle fabrication line and isokom temperatures at the viscosity of log η = 3, 6.6, 10 and 12.3 were calculated. It was found that the isokom temperature at log η = 3 and log η = 6.6 was closely related to the value of (Si+Al)/O and 1/Na, respectively.