• 제목/요약/키워드: 3 Level Service Model

검색결과 541건 처리시간 0.027초

표현형 계층을 중심으로 한 FRBR 모형 분석 및 목록 체계 수용에 관한 연구 (The Study on the FRBR Adoption into Cataloging Rule Focused on its Expression Level)

  • 조재인
    • 한국도서관정보학회지
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    • 제36권2호
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    • pp.221-239
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    • 2005
  • FRBR(Functional Requirements for Bibliographic Records)은 개체-관계형 모델을 기반으로한 서지 정보의 새로운 개념 모델로 향후 개정될 AACR 3의 기본 개념으로 자리잡고 있다. JSC(Joint Steering Committee for Revision of AACR)는 FRBR 개념을 수용하기 위한 다각도의 작업을 진행하고 있으며, 특히, 표현형 계층 문제를 해결하기 위하여 통일 표제의 전면적인 용도 변경과 GMD(General Material Designation)의 개선을 건의한 상황이다. 본 연구에서는 FRBR의 발전 과정과 표현형 계층의 문제점을 분석하고 FRBR 개념 수용을 위한 AACR3의 개정 방향을 고찰한다. 또한 이러한 세계적 흐름에 따른 우리 목록 규칙과 목록 레코드의 실제 작성 현황을 분석하고 문제점과 앞으로의 발전 방향을 모색해 본다.

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수리용량의 제한이 있는 수리가능한 부품의 3단계 재고시스템에 관한 연구 (A Three-Echelon Inventory Model for Repairable Items with Capacity Constraint)

  • 김지승
    • 산업경영시스템학회지
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    • 제20권43호
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    • pp.99-107
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    • 1997
  • We consider a multiechelon repairable-item inventory system where several bases are supported by a central depot and the external repair facilities. Unlike METRIC- based models, there are only a finite number of repair channels at each base, central depot and the external repair facilities. It is desired to find repair capacities and spares level which together guarantee a specified service level at minimum cost. Closed queueing network theory is used to model the stochastic process. The purpose of this paper is to derive the steady-state distributions of this system.

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5개 대학병원들의 의사만족도가 조직몰입도에 미치는 영향 (Effects of Satisfaction Level of Doctors from Five University Hospitals on Organization Commitment Level)

  • 김장묵;한주랑;성동효
    • 보건의료산업학회지
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    • 제8권3호
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    • pp.1-11
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    • 2014
  • The present study aimed to survey doctors working in five university hospitals about internal customer satisfaction and organization commitment level in order to identify casual relationships through structure equations. According to the analysis, organization management had the biggest impact on internal customer satisfaction level, and the sooner the factor was named personnel, leadership, job, and compensation, the bigger the impact it had on the level. The research model was generally found to be good in terms of goodness of fit, considering the value of $x^2$ calculated as 103.314, the degrees of freedom of 38, GFI 0.924, AGFT 0.868, NFI 0.888, CFI 0.925, and RMSEA 0.086. In conclusion, the internal customer satisfaction level of doctors was significantly proportionate to organization commitment by means of their general satisfaction level, while also being directly proportionate to organization commitment (p<0.05). Meanwhile, statistical significance could not be found when measuring the effects of the doctors' basic characteristics on the levels of internal customer satisfaction and general satisfaction in hospitals.

R&D 전주기 지원형 과학기술 지식인프라 통합서비스 구축에 관한 연구 (A Study on the Building of Integrated Service for Science and Technology Knowledge Infrastructure Supporting the Entire R&D Cycle)

  • 이석형
    • 한국비블리아학회지
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    • 제31권3호
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    • pp.235-256
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    • 2020
  • 본 연구의 목적은 R&D 활동에 도움이 되는 다양한 과학기술 지식인프라를 통합적으로 서비스하기 위한 통합서비스 구축 방법을 정의하고 실제 구축 사례를 보이는데 있다. 아이디어 생성/개발, 펀딩파악, 과제수행, 성과창출 확산 등 R&D 전주기별로 산재되어 있는 지식인프라들을 서비스·기능·정보·데이터 측면에서 세분화하여 연계, 융합함으로써 한 곳에서 이용자가 원하는 지식인프라를 적시에 제공할 수 있는 통합시스템 구축 방법을 제시하였다. 특히 본 연구에서는 통합서비스가 개별 지식인프라 서비스의 물리적 통합이 아닌 논리적 연계·통합을 고려하여 통합서비스 분류체계, 통합수준모델, 통합아키텍처, 이용자 통합인증체계를 정의하여 통합서비스 구축의 효율성과 유사 통합서비스 구축시 참조모델로의 확장성을 고려하였다.

기업수준에서의 급변적 서비스 혁신 프로세스 모형과 관련 연구 이슈 탐색 (The Related Research Issues and the Suggestion of the Radical Services Innovation Process Models in the Service Firms)

  • 안연식
    • 서비스연구
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    • 제3권2호
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    • pp.75-89
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    • 2013
  • 애플, 구글이나 월마트 등 지속적인 성장세를 유지하고 있는 서비스 기업들은 급변적인 서비스 혁신에 성공한 기업이라고 할 수 있다. 기존 기술이나 상품을 근간으로 개선을 추구하는 점진적인 혁신에 비해서 급변적인 혁신은 기존 시장이나 이용 중인 기술에 기반하지 않은 오히려 현재 기반을 파괴하는 혁신을 추구하는 것이 특징이다. 앞으로는 우리나라의 많은 서비스 기업에서도 이와 같은 급변적인 혁신을 추구하게 될 것이다. 본 연구에서는 급변적인 서비스 혁신을 추구하는 기업에서 새로운 서비스를 개발하는데 활용할 수 있는 프로세스 모형을 제시하기 위해 수행되었다. 먼저 급변적 서비스 혁신의 개념과 서비스 개발 프로세스 모형에 관련된 기존 연구결과를 고찰한 후 새로운 서비스 개발 프로세스 모형을 제시하였다. 본 연구에서 제시된 서비스 개발 프로세스 모형은 선행분석 활동으로 기술예측 및 시장분석, 전략설정 등 전략 단계의 3개 핵심 프로세스를 설정하였고, 탐색 단계에서의 4개 핵심프로세스, 그리고 실행 단계에서의 3개 핵심프로세스 등 총 10개 핵심프로세스로서 구성된 모형이다. 이밖에도 이 서비스 개발 프로세스 모형을 기업에서 적용하기 위해 필요한 성과평가 모형 등을 참조모형으로 포함시켰다. 앞으로 서비스 개발 프로세스를 다룬 많은 사례 연구와 본 연구결과에서 제시된 서비스 개발 프로세스모형의 개선 및 최적화 모형이 제시될 필요가 있다.

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과학교사들의 2009 개정 교육과정 융합형 '과학' 수용에 관한 인과 모델 연구 (The Study of Causal Model on Science Teachers' Adoption of 'Science' Focusing on the Fusion in the 2009 Revised Curriculum)

  • 하민수;신세인;이준기;박현주;정덕호;임재근
    • 한국과학교육학회지
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    • 제34권3호
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    • pp.235-246
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    • 2014
  • 이 연구는 혁신 수용 모델을 바탕으로 융합형 '과학'교과가 현장교사들에 의하여 어떻게 수용되는지에 관한 연구이다. 이 연구를 위해서 선행연구를 바탕으로 필요성 인식, 지원에 대한 인식, 개인의 혁신성, 인지된 유용성, 교수 효능감, 수용의도의 6가지 요인을 추출하였고, 관련 검사 문항을 개발하였다. 혁신 수용에 관한 선행 연구를 바탕으로 6가지 요인의 가설적 모델 역시 제안되었다. 전국 349명의 과학교사들이 설문조사에 참여하였다. 연구 결과 '과학' 교과에 대한 혁신 수용에 관련된 인식의 수준은 교사의 연수 유무, 교사 경력, 전공과 유의미한 상관관계가 없는 것으로 나타났다. 또한 혁신 수용에 관한 선행연구를 통해 제안된 모델은 과학교사들의 '과학'교과를 수용하는 과정을 설명하는데 타당한 모델로 확인되었다. 지원에 대한 인식, 인지된 유용성, 교수 효능감은 다른 변인간 관계에서 높은 수준의 매개 효과를 보였다. 이와 같은 새롭게 개발된 교육과정, 교과서, 교육 정책이 학교 현장에서 성공적으로 뿌리내리기 위해서는 교사들의 수용 의도를 향상시킬 필요가 있다. 이 연구 결과는 교사들의 수용 태도를 향상시키는 프로그램 개발에 유용하게 활용될 수 있을 것이다.

A nonlinear model for ultimate analysis and design of reinforced concrete structures

  • Morfidis, Konstantinos;Kiousis, Panos D.;Xenidis, Hariton
    • Computers and Concrete
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    • 제14권6호
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    • pp.695-710
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    • 2014
  • This paper presents a theoretical and computational approach to solve inelastic structures subjected to overloads. Current practice in structural design is based on elastic analysis followed by limit strength design. Whereas this approach typically results in safe strength design, it does not always guarantee satisfactory performance at the service level because the internal stiffness distribution of the structure changes from the service to the ultimate strength state. A significant variation of relative stiffnesses between the two states may result in unwanted cracking at the service level with expensive repairs, while, under certain circumstances, early failure may occur due to unexpected internal moment reversals. To address these concerns, a new inelastic model is presented here that is based on the nonlinear material response and the interaction relation between axial forces and bending moments of a beam-column element. The model is simple, reasonably accurate, and computationally efficient. It is easy to implement in standard structural analysis codes, and avoids the complexities of expensive alternative analyses based on 2D and 3D finite-element computations using solid elements.

Energy and Service Level Agreement Aware Resource Allocation Heuristics for Cloud Data Centers

  • Sutha, K.;Nawaz, G.M.Kadhar
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제12권11호
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    • pp.5357-5381
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    • 2018
  • Cloud computing offers a wide range of on-demand resources over the internet. Utility-based resource allocation in cloud data centers significantly increases the number of cloud users. Heavy usage of cloud data center encounters many problems such as sacrificing system performance, increasing operational cost and high-energy consumption. Therefore, the result of the system damages the environment extremely due to heavy carbon (CO2) emission. However, dynamic allocation of energy-efficient resources in cloud data centers overcomes these problems. In this paper, we have proposed Energy and Service Level Agreement (SLA) Aware Resource Allocation Heuristic Algorithms. These algorithms are essential for reducing power consumption and SLA violation without diminishing the performance and Quality-of-Service (QoS) in cloud data centers. Our proposed model is organized as follows: a) SLA violation detection model is used to prevent Virtual Machines (VMs) from overloaded and underloaded host usage; b) for reducing power consumption of VMs, we have introduced Enhanced minPower and maxUtilization (EMPMU) VM migration policy; and c) efficient utilization of cloud resources and VM placement are achieved using SLA-aware Modified Best Fit Decreasing (MBFD) algorithm. We have validated our test results using CloudSim toolkit 3.0.3. Finally, experimental results have shown better resource utilization, reduced energy consumption and SLA violation in heterogeneous dynamic cloud environment.

Multilevel modeling of diametral creep in pressure tubes of Korean CANDU units

  • Lee, Gyeong-Geun;Ahn, Dong-Hyun;Jin, Hyung-Ha;Song, Myung-Ho;Jung, Jong Yeob
    • Nuclear Engineering and Technology
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    • 제53권12호
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    • pp.4042-4051
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    • 2021
  • In this work, we applied a multilevel modeling technique to estimate the diametral creep in the pressure tubes of Korean Canada Deuterium Uranium (CANDU) units. Data accumulated from in-service inspections were used to develop the model. To confirm the strength of the multilevel models, a 2-level multilevel model considering the relationship between channels for a CANDU unit was compared with existing linear models. The multilevel model exhibited a very robust prediction accuracy compared to the linear models with different data pooling methods. A 3-level multilevel model, which considered individual bundles, channels, and units, was also implemented. The influence of the channel installation direction was incorporated into the three-stage multilevel model. For channels that were previously measured, the developed 3-level multilevel model exhibited a very good predictive power, and the prediction interval was very narrow. However, for channels that had never been measured before, the prediction interval widened considerably. This model can be sufficiently improved by the accumulation of more data and can be applied to other CANDU units.

융합 서비스 모델 개발 방법론 및 체계 연구 (A Framework for Creating Inter-Industry Service Models in the Convergence Era)

  • 권혁인;류귀진;주희엽;김만진
    • Asia pacific journal of information systems
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    • 제21권1호
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    • pp.81-101
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    • 2011
  • In today's rapidly changing and increasingly competitive business environment, new product development in tune with market trends in a timely manner has been a matter of the utmost concern for all enterprises. Indeed, developing a sustainable new business has been a top priority for not only business enterprises, but also for the government policy makers accountable for the health of Its national economy as well as for decision makers in what type of organizations. Further, for a soft landing of new businesses, building a government-initiated industry base has been claimed to be necessary as a way to effectively boost corporate activities. However, the existing methodology in new service and new product development is not suitable for nurturing industry, because it is mainly focused on the research and development of corporate business activities instead of new product development. The approach for developing new business is based on 'innovation' and 'convergence.' Yet, the convergence among technologies, supplies, businesses and industries is believed to be more effective than innovation alone as a way to gain momentum. Therefore, it has become more important than ever to study a new methodology based on convergence in industrial quality new product development (NPD) and new service development (NDS). In this research, therefore, we reviewed any restrictions in the existing new product and new service development methodology and the existing business model development methodology. In doing so, we conducted industry standard collaboration analysis on a new service model development methodology in the private sector and the public sector. This approach is fundamentally different from the existing one in that ours focuses on new business development under private management. The suggested framework can be categorized into industry level and service level. First, in the industry level, we define new business opportunities In occurrence of convergence between businesses. For this, we analyze the existing industry at the industry level to identify the opportunities in a market and its business attractiveness, based on which the convergence industry is formulated. Also, through the analysis of environment and market opportunity at the industry level. we can trace how different industries are lined to one another so as to extend the result of the study to develop better insights into industry expansion and new industry emergence. After then, in the service level, we elicit the service for the defined new business, which is composed of private service and supporting service for nurturing industry. Private service includes 3steps: plan-design-do; supporting service for nurturing industry has 4 steps: selection-make environment- business preparation-do and see. The existing methodology focuses on mainly securing business competitiveness, building a business model for success, and offering new services based on the core competence of companies. This suggested methodology, on other hand, suggests the necessity of service development, when new business opportunities arise, in relation to the opportunity analysis of supporting service based on the clear understanding of new business supporting infrastructure optimization. Meanwhile, we have performed case studies on the printing and publishing field with the restrict procedure and development system to assure the feasibility and practical application. Even though the printing and publishing industry is considered a typical knowledge convergence industry, it is also known as a low-demand and low-value industry in Korea. For this reason, we apply the new methodology and suggest the direction and the possibility of how the printing and publishing industry can be transformed as a core dynamic force for new growth. Then, we suggest the base composition service for industry promotion(public) and business opportunities for private's profitability(private).