• 한국정보시스템학회:학술대회논문집
• /
• 한국정보시스템학회 2001년도 추계학술대회 발표논문집:차세대 전상거래 시대의 비즈니스전략
• /
• pp.438-450
• /
• 2001

This study is to classify the typology of e-business model based on the practical strategic model for successful e-business implementation. For that purpose, we review the conceptual framework of e-business and collected the data from 127 companies implementing e-business. The study is conducted in three phases as follows. First, six factors consisted of 22 items are derived through factor analysis. Second, Cluster analysis is employed to group the firms into different strategic patterns. A five-cluster solution is found to maximize the distances between cluster means across the six factor patterns. The models are named as 'ascendancy and convergence', 'expansion and moderate price', 'expansion and improvement of quality', 'ascendancy and process', and 'improvement of quality' respectively. Third, ANOVA is used to examine the impact on the performance differences attributable to the models. The results of the study are; (1) the 'ascendancy and process', 'expansion and improvement of quality' and 'expansion and moderate price' models were associated with significantly higher performance levels than the 'improvement of quality' model, and (2) the hybrid strategies are needed to implement e-business successfully based on the 'ascendancy and process' model.

• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2015년도 춘계학술대회
• /
• pp.888-889
• /
• 2015

본 논문에서는 입베디드세스템에 기초를 둔 시스템온칩을 구성하는 방법을 제안하였다. 제안한 방법은 이전의 방법에 비해 좀 더 콤팩트하고 효과적이다. 이 방법은 높은 수행시뮬레이션을 요구하고 하드웨어/소프트웨어 통합설계 툴을 사용하여 구현을 위한 실행 가능한 규격화된 적절함을 요구한다. 시스템 인터페이스 처럼 이미 존재하고 있는 부품의 재사용은 지원되지만, 작업 이후는 단지 하드웨어/소프트웨어 통합설계 툴의 프로그램에 의해 수행되어진다. 실제 설계 흐름은 모든 프로세스를 통하여 요구되는 구현으로부터 모든 설계 단계 사이의 궤환을 허용하게끔 설명되어진다. 향후 좀 더 진보된 임베디드시스템에 기초를 둔 시스템온칩을 구성하는 방법이 요구된다.

• Asia pacific journal of information systems
• /
• 제12권3호
• /
• pp.135-167
• /
• 2002

This research focuses on the IS development methodology as an object of innovation in an IS organization. It has two main research objectives. It was intended to understand the critical affecting factors which have an effect on the processing of each level in the dynamic and evolving innovation process. There are two levels of innovation process: initiation and implementation. It was also intended to understand the performance of IS organizational innovation. We found three main results by the LISREL analysis. First, main factors affecting initiation level of innovation are innovative tendency of IS members, communication level of IS organization, existence of champion manager, IS performance gap, executive supporting to IS, and relative advantage of IS development methodology. At the implementation level, it was understood that the existence of champion manager, executive support, and relative advantage of IS development methodology were the main factors promoting to use the innovation, and the complexity of innovation was a negative factor adopting the usage of innovation. Second, the quality of the previous level in the gradual innovation activities gives very notable affection to the continuous next level. Finally, it was found that the qualitative performance like the documentation, collaborative team approach, IS developer's awareness and ability corresponding to their task and so on was improved due to the IS organizational innovation. This research provides the standard framework for the IS organizational innovation in a structural way. In the practical aspect, it may be used as the principle for introducing and using the IS development methodology.

• 대한전자공학회논문지SD
• /
• 제39권4호
• /
• pp.72-83
• /
• 2002

본 논문에서는 공급 전압을 순수하게 소프트웨어적으로 제어함으로서, 하드웨어 구현이 간단하고 전력 소모를 효과적으로 줄이며 복잡한 인터페이스 회로가 필요 없는 새로운 저전력 VLSI 시스템 아키텍처를 제안하였다. 제안된 아키텍처는 클록 주파수-공급 전압 특성을 순수하게 소프트웨어적으로만 모델링하고, 시스템상의 여러 칩들에 대해서 각각 독립적으로 공급 전압을 제어하고, 주 클록 주파수 f/sub CLK/의 1/n인 f/sub CLK/, f/sub CLK/2, f/sub CLK/3...만을 클록 주파수로 허용하였다. 또한, 제안된 저전력 VLSI 시스템 아키텍처의 프로토타입 시스템을 제작하고 전력 소모를 측정하였다. 프로토타입 시스템은 기존의 상용 마이크로프로세서 평가 보드를 약간 수정하여 레벨 쉬프터와 전안 스위치와 같은 간단한 개별 소자만을 덧붙여서 제작되었으며, 0.58W이던 전력 소모가 0.12W로 감소함을 확인할 수 있었다.

• 보건교육건강증진학회지
• /
• 제32권3호
• /
• pp.97-107
• /
• 2015

Objectives: The current study aims to examine whether the influence of National Long-term Care Insurance(NLCI) on the quality of life(QoL) trajectory of older adults with disabilities is more positive than its influence on those without disabilities. Methods: Sample consisted of 5,362 elderly aged 65 and over who participated in the Korean Welfare Panel Study from Wave1 to Wave7. Data were analyzed using latent growth curve modeling. Results: Major findings are as follows. (1) Before the NLCI, the trajectories of QoL between older adults with disabilities and those without were same. (2) After the NLCI, elders with disabilities showed lower levels of QoL at the beginning, but the gaps gradually decreased with time. These results indicate that the implementation of NLCI more positively affected elders with disabilities than those without disabilities. Conclusions: These results suggest that the NLCI functions properly as one of social security nets to cope with the needs of older adults with disabilities. In conclusion, it is critical to develop a sustainable NLCI system to enhance the QoL of older adults with disabilities.

• 전기학회논문지
• /
• 제56권2호
• /
• pp.240-247
• /
• 2007

This paper presents an implementation of the generator protective relay using Real Time Digital Simulator (RTDS) user defined component (UDC) model designed to facilitate the investigation and evaluation of protective relays. The UDC for RTDS is a convenient model that allows user to develop new component models and run them on the RTDS. The developed model has major features related to the development of six models such as distance, frequency, reverse power, volts per Hz, over voltage, and out-of-step relays. Also, the generator relay models have been used to support and enhance power engineering education at both the undergraduate and graduate levels. The developed model functions are verified and tested by both static test and dynamic test. The simulation results show the capabilities of the developed generator relay using RTDS UDC.

• 한국공작기계학회논문집
• /
• 제13권1호
• /
• pp.35-47
• /
• 2004

In this paper presents a new approach to the design and real-time implementation of fuzzy control system based-on digital signal processors(DSP:IMS320C80) in order to improve the precision and robustness for system of industrial robot(Dual-Arm with 8 joint Robot). The need to meet demanding control requirement in increasingly complex dynamical control systems under significant uncertainties, leads toward design of intelligent manipulation robots. The IMS320C80 is used in implementing real time fuzzy control to provide an enhanced motion control for robot manipulators. In this paper, a Self-Organizing Fuzzy Controller(SOFC) for the industrial robot manipulator with a actuator located at the base is studied. A fuzzy logic composed of linguistic conditional statements is employed by defining the relations of input-output variables of the controller. In the synthesis of a FLC(Fuzzy Logic Controller), one of the most difficult problems is the determination of linguistic control rules from the human operators. To overcome this difficult SOFC is proposed for a hierarchical control structure consisting of basic and high levels that modify control rules. The proposed SOFC scheme is simple in structure, Int in computation, and suitable for implementation of real-time control. Performance of the SOFC is illustrated by simulation and experimental results for a Dual-Arm robot with eight joints.

• 한국항해항만학회지
• /
• 제28권1호
• /
• pp.17-22
• /
• 2004

이 논문에서는 해양사고 통계예측 결과의 의미를 쉽게 이해할 수 있는 3차원 가시화 시스템의 구현에 관해서 기술했다. 이 시스템 개발에는 그래픽 사용자 인터페이스 방식(GUI)과 웹(Web) 기반 가상현실(VR) 기술을 주로 적용하였다. 그리고, 매일의 상황을 예보하기 위하여 시간기반 해양사고 예측모델과 위험수준 지표를 개발하였다. 시스템 작동실험 결과, 3차원 가상공간에 단순한 색으로 복잡한 통계결과를 나타낼 수 있었다. 또한, 매일의 위험수준을 막대 그래프에 나타낼 수 있었다.

• 한국정보통신학회:학술대회논문집
• /
• 한국해양정보통신학회 2007년도 춘계종합학술대회
• /
• pp.481-484
• /
• 2007

본 논문에서는 임베디드시스템에 기초를 둔 시스템온칩을 구성하는 방법을 제안하였다. 제안한 방법은 이전의 방법에 비해 좀 더 콤팩트하고 효과적이다. 이 방법은 높은 수행시뮬레이션을 요구하고 하드웨어/소프트웨어 통합설계 툴을 사용하여 구현을 위한 실행 가능한 규격화된 적절함을 요구한다. 시스템 인터페이스 처럼 이미 존재하고 있는 부품의 재사용은 지원되지만, 작업 이후는 단지 하드웨어/소프트웨어 통합설계 툴의 프로그램에 의해 수행되어진다. 실제 설계 흐름은 모든 프로세스를 통하여 요구되는 구현으로부터 모든 설계 단계 사이의 궤환을 허용하게끔 설명되어진다. 향후 좀더 진보된 임베디드시스템에 기초를 둔 시스템은칩을 구성하는 방법이 요구된다.

• 전자통신동향분석
• /
• 제32권6호
• /
• pp.105-115
• /
• 2017

This paper describes a project - based quality management model that identifies development technologies and codes while at the same time verifying the ability to implement processes that are essential in R & D projects. In order to verify the process implemented in the R & D project implementation, there are review, checking points, and evaluating methods the process performance levels for five processes such as defining requirements which is the beginning stage of system development, testing process which is the completion stage of system development, and project management and peer review process for project management and support in the proposed project-based quality management model. For development technology and code validation, the model included the documented test cases for each requirement by the developer in the requirements definition stage, debugging and testing in the design and implementation stages, static analysis and open source licence verification procedure, and system environment. After applying the model in SW development R&D project for evaluating the process performance, and verifying the development technology and the code, the developers responded that the improvement in the development technique and the code, and upgrade of process performance level for project are more than 10%.