• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2003년도 추계학술대회 및 정기총회
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• pp.289-292
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• 2003

SME's (Small and Medium-sized Enterprises) have limited resources to build information systems on their own. We suggest what government need to do to support SME's, which includes establishing a one-stop service center, outsourcing of public service, and triggering strategy In order for the government support to be effective, it should serve SME's needs continuously and professionally.

• Asia pacific journal of information systems
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• 제12권4호
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• pp.237-253
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• 2002

E-commerce is now widely used as the new business opportunity for most companies in Korea. The purpose of this study is first to find the attributes of the logistics service quality in e-commerce environment. We, then, try to find the relationships among service quality, customer satisfaction and repurchase intentions. The results of empirical study show that five attributes(responsiveness, empathy, reliability, accuracy and tangible) are identified as key factors of service quality. Customer satisfaction has also significant effect on repurchase intentions.

• 산업경영시스템학회지
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• 제40권3호
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• pp.66-75
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• 2017

Priority disciplines are an important scheme for service systems to differentiate their services for different classes of customers. (N, n)-preemptive priority disciplines enable system engineers to fine-tune the performances of different classes of customers arriving to the system. Due to this virtue of controllability, (N, n)-preemptive priority queueing models can be applied to various types of systems in which the service performances of different classes of customers need to be adjusted for a complex objective. In this paper, we extend the existing (N, n)-preemptive resume and (N, n)-preemptive repeat-identical priority queueing models to the (N, n)-preemptive repeat-different priority queueing model. We derive the queue-length distributions in the M/G/1 queueing model with two classes of customers, under the (N, n)-preemptive repeat-different priority discipline. In order to derive the queue-length distributions, we employ an analysis of the effective service time of a low-priority customer, a delay cycle analysis, and a joint transformation method. We then derive the first and second moments of the queue lengths of high- and low-priority customers. We also present a numerical example for the first and second moments of the queue length of high- and low-priority customers. Through doing this, we show that, under the (N, n)-preemptive repeat-different priority discipline, the first and second moments of customers with high priority are bounded by some upper bounds, regardless of the service characteristics of customers with low priority. This property may help system engineers design such service systems that guarantee the mean and variance of delay for primary users under a certain bounds, when preempted services have to be restarted with another service time resampled from the same service time distribution.

• 제어로봇시스템학회논문지
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• 제22권2호
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• pp.153-161
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• 2016

This paper proposes a bridge model for data exchange and service invocation between OPRoS and ROS platforms, shows the validity of the proposed model via applications, and compares the proposed model with the OPRoS platform and the ROS platform using performance measures such as data exchange time and service response time. The proposed model operates independently of OPRoS and ROS Platforms using its configuration file with mapping information among the OPRoS data/service port and the ROS topic/service. The configuration file makes easy connections between OPRoS data/service and ROS topic/service without changing the source code of the platform and components.

• Asia pacific journal of information systems
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• 제10권3호
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• pp.145-157
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• 2000

Economists have advocated that the market competitiveness improved the firm's productivity and eventually its service quality. However, the previous researches did not provide the empirical results enough to prove that the competitiveness do improve the service quality. In this paper, we conducted an empirical research to find whether the competition induces the quality of service. The telecommunication industry was chosen since it went through the increasing competition along with a high attention. We found that competition itself does not guarantee the quality of service. It is the intensity of competition that improves the service quality. The service quality depends mainly on the competitor's competence, i.e. the intensity of competition rather than the competition itself. In sum, when we want tc improve the service quality as well as the productivity, we had better increase the intensity of competition by allowing many new strong entities.

• Asia pacific journal of information systems
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• 제13권2호
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• pp.47-66
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• 2003

Economists have advocated that the privatization and market competitiveness improve the firm's productivity and eventually its service quality. However, the previous researches did not provide the empirical results enough to prove that the privatization and competitiveness do improve the service quality. In this paper, we conducted an empirical research to find whether the privatization and competition induces the quality of service. The mobile telecommunication industry was chosen since it went through bringing the privatization and increasing the competition along with a high attention. We found that the privatization and competition itself does not guarantee the quality of mobile telecommunication service. It is the intensity of competition that improves the mobile telecommunication service quality. The service quality depends mainly on the competitor's competence, i.e. the intensity of competition rather than the competition itself. In sum, when we want to improve the service quality as well as the productivity, we had better increase the intensity of competition by allowing many new strong entries.

• 한국정보시스템학회지:정보시스템연구
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• 제16권4호
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• pp.195-221
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• 2007

In this study, we investigate the effect of social presence and affection on the UCC service participation. We have conducted a face-to-face survey along with an e-mail survey and obtained a total of 329 responses. The findings show that social presence has a significant impact on pleasure and arousal. Social presence in turn show a positive impact on participation in the UCC service. Meanwhile, pleasure shows a negative effect on the UCC service participation, while arousal very strongly and positively affects the UCC service participation. The significance of this study can be found in that it empirically demonstrates the importance of social presence and affection in promoting the UCC service.

• 한국산학기술학회논문지
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• 제14권9호
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• pp.4478-4484
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• 2013

기존 모바일 커스터마이제이션 연구는 단일 디바이스의 서비스를 변경하려는 단일 커스터마이제이션 기법으로 수행되어왔다. 그러나, 변경하려는 모바일 서비스가 다중 디바이스에 일괄적으로 적용되기 위해서는 기존의 단일 커스터마이제이션 기법으로는 미흡하다. 본 논문에서는 모바일 서비스의 흐름제어 데이터를 공유하여 다중 디바이스를 커스터마이제이션하기 위한 기법을 제안 한다. 제안하는 다중 커스터마이제이션 기법은 푸시 서비스와 클라우드 서비스를 기반으로 한다.

• Industrial Engineering and Management Systems
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• 제4권2호
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• pp.129-135
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• 2005

Continuous quality improvement through process refinement is a must for survival of all industries in the contemporary market place. This is true for both manufacturing and service sectors. While manufacturing has spearheaded quality efforts, the service sector has lagged behind primarily because of inherent difficulties. Customer satisfaction is perhaps the most important performance measure for service quality. There are a number of quality dimensions in service quality, such as reliability, responsiveness, assurance, empathy, and tangibles. An issue of concern is ‘how can one have a unified measure of service quality across all the dimensions?' The intent of this paper is to determine if the Analytical Hierarchy Process (AHP) method could be used to derive a single quality index. AHP is a quantitative technique that structures a multi-attribute, multi-person and multi-period problem hierarchically so that solutions are facilitated. This paper presents the development of an AHP model and the derivation of a Quality Index through it. The model is used in a hypothetical case and a quality index was developed. The advantages of using such a technique are discussed.

• 지식경영연구
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• 제14권3호
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• pp.87-100
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• 2013

As the external knowledge networks of firms have become more and more important to their product and service innovations, many global leading companies such as P & G, IBM, and Samsung Electronics have formulated and implemented their open innovation strategy. This study attempts to empirically analyze the effects of CEOs' supports for external knowledge networks, external knowledge network-oriented cultures and inter-organizational knowledge management systems as the major antecedents to external knowledge networks by using the data based on organizational members' perceptions about them. Based on 847 samples collected from employees in three companies in the medical, the construction and the IT service industries, this study performed a structural equation modeling (SEM) analysis about the effects of the antecedents to the external knowledge networks on product and service innovations through Partial Least Squares (PLS). The empirical findings of this study show that CEOs' supports for external knowledge network positively influence product and service innovations, partially mediated by external knowledge network-oriented cultures and inter-organizational knowledge management systems. And they also show that external knowledge network-oriented cultures and inter-organizational knowledge management systems have a positive effect on product and service innovations, respectively, partially mediated by external knowledge networks. With these new findings, academic and practical implications are discussed.