• 한국IT서비스학회지
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• 제11권1호
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• pp.273-292
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• 2012

Manufacturers have started to adopt service as their offering mix in order to overcome slow growth, declining profitability and commoditization in the pure product market. Several companies like IBM and GE have shown that services would be a new source of revenue and a steady growth. Service covers a wide spectrum from a simple add-on service like repair to complex outsourcing service. Service adoption is a challenge for manufacturers who have been accustomed to product making and selling. Making, proposing, delivering and evaluating services needs a different and new capabilities for manufacturers. And service transition is closely related with capabilities which make a transition with a less risk. In this paper, a taxonomy of efforts is developed which build on the service transition literatures and cases. We provide a phased service transition strategy for manufacturers and service capabilities needed at each phases.

• Journal of Information Technology Applications and Management
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• 제25권3호
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• pp.29-41
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• 2018

The purpose of constructing university information system is for improvement in diversification and throughput of information, streamlines business processes, rapid exchange of information, sharing of information, decision-making information, and securing educational facilities. Similar to business information technology system, university information system does not have a review system for sharing and overlapping investment of information. Due to the lack of project management for outsourcing and vulnerability of system suitability, system audit is absolutely needed for the university information system. This paper especially focuses on an operational phase in the audit of university information system. Additionally, we proposed operating model and checklists of the university information system based on Management Guidelines of ITIL V3 Operational and Information System. We derived the checklists of operation audit by each domain of service strategy, service design, service transition, service operation, and continual service improvement. As the result, this study appear to have more than average satisfaction the suitability results were.

• 중환자간호학회지
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• 제12권2호
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• pp.50-60
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• 2019

Purpose : The purpose of this study was to identify the attributes, antecedents, and consequences of the transition of simulation-based learning (SBL) in nursing schools. Methods : The study was conducted in accordance with Walker and Avant's conceptual analysis process. We searched MEDLINE, CINAHL, EMBASE, Google Scholar, and RISS (Korean Education and Research Information Service) databases, resulting in nine studies for an in-depth review. Results : The attributes of transition of SBL include (1) preparing for a professional role, (2) practicing in a real clinical setting, and (3) progressing toward expected competency. Antecedents of the concept include novice status, changing roles, clinical experience in controlled settings, and expected competency in the clinical setting. Conclusion : The transition of SBL includes the important feature of progression toward expected competency. Further research is needed to identify graduate nurses' experiences during this transition to establish a strategy for improving it and developing a measurement tool that reflects attributes of the concept.

• Journal of Electrical Engineering and Technology
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• 제10권2호
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• pp.452-464
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• 2015

This paper proposes a DC microgrid operational strategy and control method for improved service reliability. The objective is to supply power to as many non-critical loads as possible, while providing an uninterrupted power supply to critical loads. The DC bus signaling method, in which DC voltage is an information carrier, is employed to implement the operational strategy in a decentralized manner. During grid-connected operation, a grid-tied converter balances the power of the microgrid by controlling the DC voltage. All loads are connected to the microgrid, and operate normally. During islanded operation, distributed generators (DGs), a backup generator, or an energy storage system balances the power. However, some non-critical loads may be disconnected from the microgrid to ensure the uninterrupted power supply to critical loads. For enhanced service reliability, disconnected loads can be automatically reconnected if certain conditions are satisfied. Control rules are proposed for all devices, and detailed microgrid operational modes and transition conditions are then discussed. Additionally, methods to determine control parameter settings are proposed. PSCAD/EMTDC simulation results demonstrate the performance and effectiveness of the proposed operational strategy and control method.

• 한국전자거래학회지
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• 제14권4호
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• pp.35-45
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• 2009

국내 ASP(Application Service Provider) 산업은 지난 10년 동안 정부 주도하에 중소기업을 대상으로 급 성장하였다. 그러나 최근 ASP 서비스 업체의 지속적 적자 및 이용업체의 가입 정체 등으로 ASP 산업이 침체되고 있다. 따라서 본 논문에서는 ASP 시장 규모 및 시장성장률의 BCG 매트릭스를 이용하여 핵심 서비스 군을 도출하고 이 서비스 군을 대상으로 집중 인터뷰(Focused Group Interview)를 통하여 핵심 성공 요소를 파악하여 ASP 산업의 활성화 방향과 차세대 ASP로 지칭되는 SaaS(Software as a Service)로의 발전방향을 모색하고자 한다.

• 한국산업정보학회논문지
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• 제27권1호
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• pp.93-109
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• 2022

오늘날 고객과 정보와 서비스를 결합하는 디지털전환은 산업전체의 판도를 바꾸는 새로운 비즈니스 모델이 등장하며, 고객의 가치를 창출하는 핵심 경쟁력으로 제시되었다. 이러한 관점에서 본 연구는 숙박정보를 제공하는 앱서비스 사례를 기반으로 디지털전환이 기업에 미치는 영향력을 분석하여 경쟁우위요인을 도출하하였다. 본 사례연구는 숙박예약서비스 산업에서 디지털전환시운영프로세스에서 사용자의 참여를 확대하고, 그 과정에서 사용자에게 새로운 선호요인을 제안하여 경쟁력을 높일 수 있는 서비스방안을 분석하였다. 분석결과, S사의 5가지 경쟁요인 분석을 통해 운영프로세스 상에서의 고객서비스 가치 모델을 도출하였다. 본 연구 결과는 서비스산업에서 디지털전환 시 기초자료로 활용될 수 있다.

• Journal of Communications and Networks
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• 제16권2호
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• pp.193-201
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• 2014

In cognitive radio networks, the packet transmissions of the secondary users (SUs) can be interrupted randomly by the primary users (PUs). That is to say, the PU packets have preemptive priority over the SU packets. In order to enhance the quality of service (QoS) for the SUs, we propose a spectrum access strategy with an ${\alpha}$-Retry policy. A buffer is deployed for the SU packets. An interrupted SU packet will return to the buffer with probability ${\alpha}$ for later retrial, or leave the system with probability (1-${\alpha}$). For mathematical analysis, we build a preemptive priority queue and model the spectrum access strategy with an ${\alpha}$-Retry policy as a two-dimensional discrete-time Markov chain (DTMC).We give the transition probability matrix of the Markov chain and obtain the steady-state distribution. Accordingly, we derive the formulas for the blocked rate, the forced dropping rate, the throughput and the average delay of the SU packets. With numerical results, we show the influence of the retrial probability for the strategy proposed in this paper on different performance measures. Finally, based on the trade-off between different performance measures, we construct a cost function and optimize the retrial probabilities with respect to different system parameters by employing an iterative algorithm.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2004년도 추계학술대회 및 정기총회
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• pp.304-316
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• 2004

When new services are introduced, one of the drivers for market performance of them is the interactions among existing and new services. They are characterized by the substitution or complementary effects among existing and new service or the cannibalization of existing services by new services. This paper analyzes these issues in the telecommunications service industry context. To analyze them, a simple graphical tool or State Transition Diagram(STD) is developed and used. The diagram helps to clearly represent and explain the substitution, complement and cannibalization impact. Then, using the face-to-face survey of 1,200 people, a new wireless internet access service or WiBro is analyzed to identify the substitution/complement and cannibalization impacts in relation with the other competing services. Additionally, the important factors explaining customer subscription and substitution behavior are identified. The analysis results indicate that males, students or on-line game users are more likely to subscribe WiBro. Also, among the potential WiBro subscribers, customers who are less satisfied with the existing fixed line broadband internet access services are more likely to stop subscribing the fixed line service, which implies substitution by a new service. Additionally, this raises the issue of cannibalization if the existing and new services are provided by the same company. In fact we find the cannibalization effect is more serious for the cost sensitive group. We believe that our tool, approach, analysis results and their implications would be very helpful to devise a winning strategy for the new services in the highly uncertain telecommunications business environment.

• 서비스연구
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• 제11권3호
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• pp.31-42
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• 2021

본 연구는 데이터 경제시대, 디자인 산업데이터에 관한 이론적 고찰에 관한 연구이다. 본 연구는 디자인 산업데이터의 가치를 조명하고, 디자인 경영에서 디자인 데이터 시대로 전환의 의미를 해석하며, 디자이너에게 데이터를 해석하는 리터러시(literacy)의 중요성을 부각하고자 한다. 연구범위는 디자인의 산업적 가치를 탐구하기에 기업의 R&D 역량 강화 차원으로 접근한다. 또한, 디자인의 인문학적 기반과 미학적 가치보다는 산업적 관점에서 연구의 범위를 한정한다. 연구결과 디자인 산업데이터의 가치는 사후 평가가 아니라, 고객 중심의 시장 예측에 있다는 것과 디자인 산업데이터 주도전략이 중요하다는 것을 알 수 있었다. 핵심사항은 대기업과 중소기업의 디자인 산업데이터 이슈가 다르며, 디자인 산업데이터의 지향점은 기업의 제품/서비스 개발에 있어서 고객 중심의 의사결정 지원에 있어야 하고, 핵심역량은 데이터의 양이나 다루는 도구와 기술이 아니라, 데이터 리터러시에 있어야 한다. 마지막으로 디자인 산업데이터의 활용이 강화되려면 개인적 차원의 데이터 관리가 아니라, 공용화 차원의 관리가 선행되어야 한다.

• 한국정보과학회논문지:소프트웨어및응용
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• 제37권9호
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• pp.687-693
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• 2010

지식정보사회에 적극적으로 대응하고, 조직의 경쟁력을 강화하기 위하여 정부기관 및 공공기관은 정보기술서비스관리(ITSM)시스템을 도입하여 운용할 필요가 있다. 최근에 우리나라의 정부기관 및 공공기관은 ITSM프로세스의 혁신과 정보화의 수준이 미흡한 환경에서 IT서비스의 수요증가와 복잡화에 따른 많은 어려움에 직면하고 있다. 특히, IT아웃소싱의 증가로 인한 IT서비스관리의 어려움은 더욱 커지고 있다. 이와 같은 문제를 해결하기 위해 ITSM에 대한 기대는 더욱 커지고 있다. 따라서 본 연구는 ITSM의 성공적인 도입운용에 필수 요소인 ITSM조직구조에 대한 설계대안을 제시하였다. 즉, ITSM조직구조를 전통적인 기능 중심적인 조직구조에서 목적 중심, 고객 중심, 프로세스 중심의 조직구조로 제안하였다. 즉, ITSM조직는 서비스전략조직, 서비스설계조직, 서비스전이조직, 서비스운용조직, 서비스개선조직으로 구분하여 제안하였다. ITSM의 실효성을 확보하기 위하여 조직구조별 역할과 책임을 구체화하였으며, 조직별 전문성을 확보하기 위하여 인력편성방안도 제시하였다. 제안한 ITSM조직구조는 정부기관 및 공공기관의 정보화조직발전에 유용하게 활용될 것으로 기대된다.