• KSII Transactions on Internet and Information Systems (TIIS)
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• 제17권11호
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• pp.3030-3049
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• 2023

With the development and wide application of hybrid network computing modes like cloud computing, edge computing and fog computing, the customer service requests and the collaborative optimization of various computing resources face huge challenges. Considering the characteristics of network environment resources, the optimized deployment of service resources is a feasible solution. So, in this paper, the optimal goals for deploying service resources are customer experience and service cost. The focus is on the system impact of deploying services on load, fault tolerance, service cost, and quality of service (QoS). Therefore, the alternate node filtering algorithm (ANF) and the adjustment factor of cost matrix are proposed in this paper to enhance the system service performance without changing the minimum total service cost, and corresponding theoretical proof has been provided. In addition, for improving the fault tolerance of system, the alternate node preference factor and algorithm (ANP) are presented, which can effectively reduce the probability of data copy loss, based on which an improved cost-efficient replica deployment strategy named ICERD is given. Finally, by simulating the random occurrence of cloud node failures in the experiments and comparing the ICERD strategy with representative strategies, it has been validated that the ICERD strategy proposed in this paper not only effectively reduces customer access latency, meets customers' QoS requests, and improves system service quality, but also maintains the load balancing of the entire system, reduces service cost, enhances system fault tolerance, which further confirm the effectiveness and reliability of the ICERD strategy.

• 한국사회복지학
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• 제61권3호
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• pp.155-177
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• 2009

본 논문은 복지국가의 사회서비스 발전과정을 개괄하고 독일의 사회서비스 제도화 및 재구조화 과정을 분석함으로써 이것이 현재 진행 중인 한국의 전자 바우처 중심 사회서비스 제도화 과정에 줄 수 있는 함의를 논의하고자 한다. 이를 위해 우선 복지국가의 사회서비스 확대 및 재정비 경향을 제솝의 workfare 논의를 바탕으로 그리고 국가의 사회서비스 개입 지점을 혁신 개념을 중심으로 분석하였다. 다음으로 독일의 사회서비스 제도화 및 재구조화 경향을 고찰하였다. 마지막으로 한국의 사회서비스 제도화에 줄 수 있는 함의를 공급체계와 생산체계의 구분 및 형성, 지역사회 구심점 설정, 생산자 지원 방식의 활성화 그리고 생산주체로서 비영리조직 역할의 확대로 제시하였다.

• 한국시스템다이내믹스연구
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• 제8권1호
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• pp.5-24
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• 2007

This study explores the partnership between government and human service nonprofits in the United States from the perspective of resource dependence theory and extends the theory with system dynamics in order to better explain government-nonprofit service delivery. The article is structured as follows. First, I introduce the historical development of the government-nonprofit partnership in service delivery in the United States. Second, I present an overview of resource dependence theory for government-nonprofit service delivery, including assumptions, key elements, claims, how well it explains the government-nonprofit service delivery, and limitations. Third, I highlight the advantages of system dynamics along with the limitations of resource dependence theory, as an attempt to revise the theory. Finally, I conclude with a summary and suggestions for the next steps in theoretical development and research.

• Journal of Information Science Theory and Practice
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• 제4권3호
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• pp.57-70
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• 2016

Purpose The purpose of the study is to identify the need of a mobile based library information and service delivery system in developing countries, identify the services that are possible to provide with the help of mobile phones and their applications, design a mobile based library information and service delivery system, and identify major challenges regarding mobile based library information and service delivery systems.Design/ Methodology/ Approach The research is exploratory in nature. This paper is based on a review of literature, survey information, and on the author’s own viewpoints. A comprehensive search of scientific literature has been done along with a survey for validating the necessity of designing mobile based library information and service delivery systems. Responses to closed-ended questions in particular on 7-point Likert scales were analyzed using the descriptive analysis techniques of SPSS 20.0 and responses to other closed-ended questions were analyzed using general statistics.Findings The research indicates that users of academic libraries, especially students and faculty members, have a positive notion regarding designing and implementing a mobile based library information and service delivery system. It also reveals user opinions regarding the possible problems associated with the design and implementation of a mobile based library information and service delivery system.Originality The paper explores mobile based library information and service delivery systems for better and faster service provision to its potential users.

• 한국응급구조학회지
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• 제6권1호
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• pp.185-197
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• 2002

Today, the basic problem of functional safe management of Korean Disaster Control system was separately administrated 33 acts that are relating to safe management in 13 ministries. Because of the facts that the fire service is not provided practically, the control system and risk management for safe administration are not operated, the information can not be shared with each other, and the various laws have the lacks of linkage, the National Safe System was appeared unsteady. The roles and functions of fire service have started with restriction to operate structurally and institutionally, which operational structure of fire service is becoming weak. As a result, the federal and local fire organizations have not reached yet to the institutionalization and the local fire service agencies have bias with the task regarding the fire service because of the relation between organizational structure and the local fire agency. With the enforcement of the federal and local fire system, professionality and autonomy for making policy, and dealing with changes of fire service positively, the national fire service on the policy performance can be established. Promotion of research and development and education training to strengthen innovation in technology and competition in fire industry will contribute to the firmly establishment of control system to prevent from fire, flood, terror and national disaster. This article proposed that (a) the established law and administration, agency are required efforts to effectively operate fire service system; (b) the national fire service agency, national college of fire, national institute of science fire, and national fire service hospital should be early established to make firmly policy to operate effectively and practically. These kinds of innovational acts are known the best ways of operating solid policy of national fire service system.

• 한국산학기술학회논문지
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• 제16권5호
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• pp.3447-3454
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• 2015

현재 모바일 디바이스 증가에 의해 기업 스마트워크 시스템의 수요가 증가하고 있다. 이에 따라 스마트워크 시스템의 기술적 플랫폼이 제시되고 있으나, 급변하는 기업 업무의 신속하고 즉각적인 대응을 위한 변경 가능한 스마트워크 시스템의 연구가 미흡하다. 본 연구는 유연한 모바일 스마트워크 시스템 구축에 기반이 될 수 있는 적응형 모바일 서비스 아키텍쳐를 제안 한다. 본 적응형 모바일 서비스 아키텍쳐는 기존의 스마트워크 시스템에 적응형 서비스를 연계하여 동적인 서비스가 가능하도록 제안하며, 적응형 모바일 서비스 아키텍쳐의 핵심 요소로 적응형 서비스 관리자, 핫스팟, 설정기를 제안한다. 이러한 핵심 요소들을 기반으로 하는 동적 서비스 프로세스를 제안한다. 또한, 기업의 업무에서 이용 가능한 프로젝트 관리 모바일 서비스 개발 사례 연구를 통해 타당성을 검증한다. 이와 같이, 본 연구는 기업의 다양한 변화 업무를 유동적으로 대응하기 위한 기존의 스마트워크 시스템의 정적인 모바일 서비스 범위를 넘어서 동적 모바일 서비스를 제공할 수 있는 적응형 모바일 서비스 아키텍쳐를 제공한다.

• 가정과삶의질연구
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• 제17권3호
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• pp.217-228
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• 1999

The purpose of this study is to explore the model for the family welfare service delivery system in Korea. In order to provide more effective and efficient delivery system it is necessary to evaluate the existng family welfare delivery system. By the review of literature family welfare delivery system is fragmentary and inconsistent. Then the role of informal voluntary public and commercial sector in the delivery system is examined Lastly the models for family welfare service delivery system are proposed. Major suggestions are as follows: 1, It is necessary to reform the family welfare service delivery system for considering the integration of the family life. 2. Family welfare worker ought to coordinate the service to meet the complex needs of individuals and the family 3. The intersector collaborative model for family welfare service delivery system in proposed.

• 한국콘텐츠학회논문지
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• 제14권1호
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• pp.364-373
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• 2014

정보시스템을 통해 제공되는 서비스와 사용자 만족간의 관계는 정보시스템의 신규 서비스 개발에 있어서 중요한 사항으로 고려되어 왔다. 본 연구에서는 IT기술변화에 따른 웹 환경변화를 고려하여 국가R&D보고서 서비스에 적용 가능한 12개 핵심 서비스를 도출하였다. 도출된 12개 신규 서비스는 국가R&D보고서 시맨틱검색 서비스, 연관보고서 서비스, RSS 서비스, mesh-up 서비스, topic-map service, open API 서비스, 개인화 서비스, 집단지성 서비스, SNS 서비스, 비정형데이터 서비스, 상세검색 서비스, 메일링 서비스 등이다. 국가R&D 보고서 서비스에서 도출한 12개 신규 서비스의 품질속성을 파악하기 위하여 KANO모형을 이용하여 설문조사를 실시하였다. 설문조사 결과와 서비스별 만족계수 및 서비스 분류결과를 바탕으로 단계별 서비스전략을 제시하였다. 1단계로 추진해야 할 서비스로는 비정형데이터 서비스, 개인화서비스, 연관보고서 서비스, topic-map 서비스, open API 서비스, 집단지성 서비스 등이고, 2단계로 추진해야 할 서비스로는 RSS 서비스, mesh-up 서비스, 국가R&D보고서 시맨틱검색 서비스, 메일링 서비스, 상세검색 서비스, SNS 서비스 등이다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2014년도 춘계 학술논문 발표대회
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• pp.168-169
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• 2014

Construction Technology Service is currently hardly managed due to failure to offer standard management system of service performance, company performance, and business evaluation in every Ordering Agencies. After Construction Technology Promotion Act is enforced in May 2014, Ordering Agency obligates them to report to Minister of Land and Transportation within 10 days upon contract/ amendment/ completion. In 2013, in advance to enforcement of this law, performance management system for construction technology service was developed for a test run. However this system only applies to main contractors while management and operation of subcontractors are unavailable that causes problems on connection and integration with Experience Management Trustee. Therefore, this research will establish systematic foundation that enables real-time information of service performance and evaluation of subcontractors to result standardization of performance and evaluation for public ordered services.

• 산업경영시스템학회지
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• 제6권8호
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• pp.93-103
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• 1983

In this paper, we study an optimal service policy of the M/M/2/K queueing system with two types of customers. The incurred costs consist of waiting cost, service cost and incurred costs consist of waiting cost, service cut and changeover cost. The changeover cost occurs when a server who assigned to serve a particular type of customers reassigned to the other types of customers. Two servers serve two types of customers who arrive to the two separate queues. The two types of customers differ in respect of their arrival rate, service rate, waiting cost, and service cost. The servers require a policy, for determining when they should change their service type, which minimizes the long run expected total cost. The policy is obtained by a Markov decision process model that consists of a finite number of states and actions. In order to find the optimal service policy, we define states and actions of the system, compute onestep transition probabilities, and apply to the successive approximations algorithm.