• 한국IT서비스학회지
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• 제13권3호
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• pp.201-219
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• 2014

This paper considers service deployment and priority optimization for multiple service-oriented applications sharing reusable services, which are deployed as multiple instances in the cloud. In order to handle variations in the workloads of the multiple applications, service instances of the individual reusable services are dynamically provisioned in the cloud. Also service priorities for each application in a particular reusable service are dynamically adjusted. In this paper, we propose an analytic performance model, based on a queueing network model, to predict the expected sojourn times of multiple service-oriented applications, given the number of service instances and priority disciplines in individual reusable services. We also propose a simple heuristic algorithm to search an optimal number of service instances in the cloud and service priority disciplines for each application in individual reusable services. A numerical example is also presented to demonstrate the applicability of the proposed performance model and algorithm to the proposed optimal decision problem.

• 대한인간공학회지
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• 제31권1호
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• pp.125-130
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• 2012

Objective: This paper discusses how service design is related to two well-known disciplines, interaction design and cognitive systems engineering, which are applied to the design of software, websites and mobile phones, and the design of control room of nuclear power plants and cockpit control, respectively. Background: Service design has been spotlighted recently due to its promisingness to service industry. Successful cases of service design are widely shared among designers. Service design, however, is treated as practice rather than a discipline. Method: It was discussed that it is important to consider the interaction between customers and services as in interaction design, and some domains are complex enough and have functional limitation as in cognitive systems engineering. Results: Models and design tools of the disciplines are introduced and applied to service design practices. Conclusion: It was concluded that service design has the characteristics of both interaction design and cognitive systems engineering.

• 서비스연구
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• 제7권1호
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• pp.27-40
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• 2017

인류의 지속가능성(sustainability) 이슈는 오래전부터 논의되어 오다가, 1987년 환경 및 개발에 대한 세계위원회(WCED: World Commission on Environment and Development; Brundtland Commission)에서 지속가능 발전(sustainable development)의 개념이 제안되면서 전 지구적인 이슈가 되었으며, 2015년 9월에는 사회적 문제를 해결하고 성숙한 경제성장을 목표로 UN 70대 총회에서 지속가능발전 최신 목표를 발표하였다. 사회적, 경제적, 환경적 지속가능 목표를 달성하기 위해서는 제반 학문의 병행 발전이 필요한데, 기존 학문은 태생적 속성으로 인해 지속가능 발전을 지원하는데 한계를 보이고 있다. 본 연구는 기존 학문의 한계를 극복하는 방안으로서 서비스학 연구 활성화를 제안하며, 서비스학과 기존 학문과의 융합을 통해 지속가능발전 목표를 달성할 수 있음을 제시한다. 현대경제사회는 기존의 유형적 정태적 환경에서 무형적 동태적 환경으로 운영 패러다임이 변화하고 있으며, 산업간 경계가 해체되고, 학문간 경계도 사라지고 있으므로, 개별학문의 진화적 발전이 필요하다. 특히 지속가능발전 목표들은 융합적 통합적 접근을 필요로 하므로 융합학인 서비스학 연구가 유용하다. 본 연구에서는 지속가능발전에 관련되는 대표적 학문인 경제학, 경영학, 교육학, 사회학 등을 분석하고, 서비스학 도입의 필요성을 제시한다. 본 연구를 통해 서비스학의 발전 및 기존 학문에서의 학제간 연구가 활성화될 수 있을 것이다.

• 산업경영시스템학회지
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• 제43권4호
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• pp.1-14
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• 2020

Recently, M/G/1 priority queues with a finite buffer for high-priority customers and an infinite buffer for low-priority customers have applied to the analysis of communication systems with two heterogeneous traffics : delay-sensitive traffic and loss-sensitive traffic. However, these studies are limited to M/G/1 priority queues with finite and infinite buffers under a work-conserving priority discipline such as the nonpreemptive or preemptive resume priority discipline. In many situations, if a service is preempted, then the preempted service should be completely repeated when the server is available for it. This study extends the previous studies to M/G/1 priority queues with finite and infinite buffers under the preemptive repeat-different and preemptive repeat-identical priority disciplines. We derive the loss probability of high-priority customers and the waiting time distributions of high- and low-priority customers. In order to do this, we utilize the delay cycle analysis of finite-buffer M/G/1/K queues, which has been recently developed for the analysis of M/G/1 priority queues with finite and infinite buffers, and combine it with the analysis of the service time structure of a low-priority customer for the preemptive-repeat and preemptive-identical priority disciplines. We also present numerical examples to explore the impact of the size of the finite buffer and the arrival rates and service distributions of both classes on the system performance for various preemptive priority disciplines.

• The Journal of Asian Finance, Economics and Business
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• 제8권5호
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• pp.931-937
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• 2021

Since the service organizations have been moving towards digitization across the world, there is a wide range of technological innovations that have been integrated within the service firms, especially in banking services. As such, Internet banking is one of the innovative services that have reshaped the traditional banking activities, particularly in Bangladesh. In line with this, the research is designed to examine the Internet banking adoption based on five variables: perceived usefulness, perceived ease-of-use, trust, social influence, and perceived enjoyment, and the study also explores differences among respondents on these study variables based on gender and academic disciplines. The study has selected university students as study samples as they are the prospective customers to use Internet banking. Sample size in the research is 300, and a well-designed questionnaire was distributed to collect data. SPSS is used for statistical analysis. The research used ANOVA test to capture any difference on variables based on gender and academic disciplines. The findings indicate that male students in business have more intention to adopt Internet banking and preference for ease-of-use than female students, and business students will be more favorably inclined to adopt Internet banking service than students in other academic disciplines.

• 서비스연구
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• 제12권4호
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• pp.139-163
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• 2022

본 연구는 새로운 인류사회를 이끌어갈 중심 학문으로서의 서비스학(서비스사이언스) 연구의 과거, 현재를 분석하고 미래 연구 가이드를 제시한다. 21세기에 서비스 연구는 기존 체계와 다른 새로운 학문인 서비스학으로 발전하였다. 서비스학은 서비스 관련 모든 연구를 통칭하는 학문이다. 본 연구에서는 이러한 발전 과정을 분석하고, 향후 서비스학 연구의 방향을 제시한다. 우선 서비스학의 초기 모델인 서비스사이언스 탄생 이전 연구를 분석한다. 서비스중심 로직으로의 변화 등을 연구한 서비스마케팅 연구, 서비스기업의 운영과 경영, 서비스공학 등 기존 학문 연장 차원의 서비스 연구를 분석한다. 그리고 서비스사이언스 탄생 초기 연구를 분석한다. 서비스연구 프레임워크 제안 등 새로운 학문으로서 체계를 갖추어가는 과정을 분석한다. 이러한 과정을 거쳐 초기 서비스사이언스를 확대 발전시킨 서비스학 프레임워크를 분석한다. 기존 학문의 체계를 현대적 관점에서 새롭게 혁신한 서비스학의 각 분야들을 소개하고, 독립적 신학문의 기반이 되는 서비스철학의 구조를 분석한다. 그리고 서비스학 연구의 미래 방향을 제시한다. 먼저 기존 개별 학문들의 패러다임 혁신 연구 방향을 제시한다. 사례로 기존 경영학의 서비스경영학으로의 혁신을 소개하며 미래 연구 방향성을 안내한다. 또한 복수의 학문 분야 융합이 필요한 새로운 경제사회시스템 연구 방향을 제시한다. 경제 정치 사회 등 기존 분야의 혁신과, 민주주의 등 인류사회 핵심주제에 대한 서비스학 연구 방향을 제시한다. 최종적으로 다차원 광범위 융합 연구 방향을 제시한다. 그동안 끝없이 분화를 계속한 학문들이 인간과 세계를 중심으로 다시 통합 융합으로 되돌아가는 과정이 서비스학의 미래가 될 수 있음을 제시한다. 동서양 정신이 융합하면서 모든 학문이 서비스학으로 재통합되는 모델을 제시한다. 마지막으로 향후 서비스학 연구의 활성화 필요성을 제시한다.

• Asian Journal of Innovation and Policy
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• 제2권2호
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• pp.194-211
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• 2013

This paper introduces the Korea Citation Index (KCI) and also some macro statistics of KCI. KCI started service since 2008 by the National Research Foundation of Korea (NRF), but the data has been gathered from 1998. Our findings are as follows: heavy reliance on books in humanities, but papers as the main reference in all other disciplines. Impact factor is an increasing trend in all disciplines. Social science has the highest impact factor among all fields. In some fields even in science and engineering areas, there are more KCI papers than Korean JCR papers and impact factors of the KCI are higher than JCR. As for the distinction between nationally and internationally fields or journals, some disciplines in social science are clearly nationally oriented. NSE journals listed in both KCI and JCR, however, are not clear in terms of impact factor, but clear in terms of the numbers of papers.

• Journal of Information Technology Applications and Management
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• 제25권2호
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• pp.91-108
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• 2018

The purpose of this study is to examine the direction of the students' satisfaction improvement by comparison of related disciplines of undergraduate management information systems (MIS) majors. MIS is one of the academic disciplines that have become important as the demand for manpower for new industries in the 4th industrial revolution. We surveyed 3rd and 4th grade undergraduate students in the departments of management information systems, business administration (BA), computer engineering (CE) of C university. The results revealed that the students' satisfaction was influenced by the ability of the professor, the curriculum development, and the curriculum operation factors. Especially, it was found that the curriculum operating factors among the three departments had greater effect on the students' satisfaction. If the education environment is improved considering curriculum operating factors and the administrative and service factors and that are important in the CE departments, it will be helpful for the students' satisfaction improvement of MIS.

• Korean Journal of Radiology
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• 제23권8호
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• pp.835-845
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• 2022

Objective: To analyze the characteristics and trends of scientific publications on thyroid ultrasound (US) from 2001 to 2020, specifically examining the differences among disciplines. Materials and Methods: The MEDLINE database was searched for scientific articles on thyroid US published between 2001 and 2020 using the PubMed online service. The evaluated parameters included year of publication, type of document, topic, funding, first author's specialty, journal name, subject category, impact factor, and quartile ranking of the publishing journal, country, and language. Relationships between the first author's specialty (radiology, internal medicine, surgery, otorhinolaryngology, and miscellaneous) and other parameters were analyzed. Results: A total of 2917 thyroid US publications were published between 2001 and 2020, which followed an exponential growth pattern, with an annual growth rate of 11.6%. Radiology produced the most publications (n = 1290, 44.2%), followed by internal medicine (n = 716, 24.5%), surgery (n = 409, 14.0%), and otorhinolaryngology (n = 171, 5.9%). Otorhinolaryngology and internal medicine published significantly more case reports than radiology (p < 0.001, each). Radiology published a significantly higher proportion of publications on imaging diagnosis (p < 0.001 for all) and a significantly lower proportion of publications on biopsy (p < 0.001 for all) than the other disciplines. Publications produced by radiology authors were less frequently published in Q1 journals than those from other disciplines (p < 0.005 for internal medicine and miscellaneous disciplines and < 0.01 for surgery and otorhinolaryngology). China contributed the greatest number of publications (n = 622, 21.3%), followed by South Korea (n = 478, 16.4%) and the United States (n = 468, 16.0%). Conclusion: Radiology produced the most publications for thyroid US than any other discipline. Radiology authors published more notably on imaging diagnosis compared to other topics and in journals with lower impact factors compared to authors in other disciplines.

• 한국의류학회지
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• 제33권7호
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• pp.1152-1163
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• 2009

Product development and marketing that appeal to consumer emotions are important as shown by a variety of product and service industries that integrate fashion and arts into product design and marketing through collaboration. This study attempted to analyze the patterns in the collaborations of fashion and arts across industry disciplines. A total of 278 collaboration cases reported in news articles were collected from internet databases. Cases were categorized into 5 disciplines of fashion-fashion, arts-arts, fashion-arts, fashion-other industries, and arts-other industries, with each category analyzed in frequency distribution and collaboration type along with related partner and industry characteristics. Collaborations with other industries were observed more than internal ones, and individuals (rather than firms) were more involved in collaborations. Though the collaboration characteristics were different by partner category and sub-category, by individual or firm, and by related industries, a variety of collaborations integrating fashion and arts into product design and development, a new brand launching, product line extension, and co-marketing were observed across product and industry disciplines. The study also described fashion and arts that were integrated into consumer life styles.