• 한국IT서비스학회지
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• 제10권4호
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• pp.219-227
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• 2011

Service Oriented Architecture (SOA) is rapidly emerging as the efficient approach in contemporary complex, heterogeneous computing environments. SOA increases the adaptability by loose coupling and its main feature is that three elements such as service provider, service requester and service registry are connected with each other systematically. To design the service-oriented system efficiently, a metric to measure the coupling between services accurately is needed. In this paper, we propose four coupling metrics for SOA based softwares. First, we suggest a coupling metric for service-oriented systems by modifying an established coupling metric of object-oriented systems. Then we suggest another coupling metric which includes indirect coupling between services. We also suggest two relative coupling metrics to measure coupling between subsystems. We investigate the theoretical soundness of the proposed metrics by the axioms of Briand et al. Finally, we apply the presented metrics to an industrial-scale case study.

• Journal of Information Processing Systems
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• 제10권3호
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• pp.365-383
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• 2014

Service-oriented computing offers efficient solutions for executing complex applications in an acceptable amount of time. These solutions provide important computing and storage resources, but they are too difficult for individual users to handle. In fact, Service-oriented architectures are usually sophisticated in terms of design, specifications, and deployment. On the other hand, workflow management systems provide frameworks that help users to manage cooperative and interdependent processes in a convivial manner. In this paper, we propose a workflow-based approach to fully take advantage of new service-oriented architectures that take the users' skills and the internal complexity of their applications into account. To get to this point, we defined a novel framework named JASMIN, which is responsible for managing service-oriented workflows on distributed systems. JASMIN has two main components: unified modeling language (UML) to specify workflow models and business process execution language (BPEL) to generate and compose Web services. In order to cover both workflow and service concepts, we describe in this paper a refinement of UML activity diagrams and present a set of rules for mapping UML activity diagrams into BPEL specifications.

• 한국정보기술응용학회:학술대회논문집
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• 한국정보기술응용학회 2005년도 6th 2005 International Conference on Computers, Communications and System
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• pp.1-6
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• 2005

The purpose of this paper is to propose a novel modeling approach called Services Ecosystem that applies the concept of ecosystems in ecology to Service-Oriented Software Development and Integration. For this purpose, an ecological system for software systems is proposed for the emerging Service-Oriented Computing paradigm, describing how participants interact with each other within their environments. Three emerging concepts, Service-Oriented Programming, Software Factories, and Service Grid, are employed to explain biotic and abiotic environments. Based upon the Services Ecosystem model, we demonstrate Services Ecosystem Model transformations by using a case example. The Services Ecosystem model is a novel approach for envisioning the Service-Oriented Computing paradigm in terms of an ecosystem in which the roles/perspectives of each participant and their relationships/interactions to environments are clearly described with a holistic view.

• The Journal of Asian Finance, Economics and Business
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• 제8권11호
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• pp.67-77
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• 2021

The aim of this study is to investigate the role of employee engagement as a mediator between the High-Performance Work System and the Service-Oriented Organizational Citizenship Behavior (Service-Oriented OCB). Furthermore, work-life balance as a moderator, the impact Service-Oriented OCB on customer satisfaction will be investigated. This study employs a quantitative methodology for which questionnaires were distributed to sixty restaurants in Karachi, and a sample of 418 responses was collected for structural equation modeling analysis. Smart PLS software was used to analyze the structure model. The results show that HPWS has a positive impact on Service-Oriented OCB. It is assumed that the role of work engagement as a mediator between HPWS and Service-Oriented OCB is significant. This study found that Service-Oriented OCB has a positive impact on customer satisfaction. Work-life balance was also found to have a moderating influence. The findings confirmed the black box mechanism and the HPWS procedures in restaurants. This study suggests implementing effective HPWS practices to influence employees' work engagement, which leads to Service-Oriented OCB and employees being able to optimize their performance to influence customer satisfaction. The study contributes to the existing body of knowledge in human resource management.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제8권4호
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• pp.288-298
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• 2008

We introduce new type of networked robot, Ubiquitous Robotic Companion (URC), embedded with ATLAS Service-oriented architecture for enhancing the space sensing capability. URC is a network-based robotic system developed by ETRI. For years of experience in deploying service with ATLAS sensor platform for elder and people with special needs in smart houses, we need networked robots to assist elder people in their successful daily living. Recently, pervasive computing technologies reveals possibilities of networked robots in smart spaces, consist of sensors, actuators and smart devices can collaborate with the other networked robot as a mobile sensing platform, a complex and sophisticated actuator and a human interface. This paper provides our experience in designing and implementing system architecture to integrate URC robots in pervasive computing environments using the University of Florida's ATLAS service-oriented architecture. In this paper, we focus on the integrated framework architecture of URC embedded with ATLAS platform. We show how the integrated URC system is enabled to provide better services which enhance the space sensing of URC in the smart space by applying service-oriented architecture characterized as flexibility in adding or deleting service components of Ubiquitous Robotic Companion.

• 한국도서관정보학회지
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• 제34권2호
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• pp.163-185
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• 2003

주제별조직 형태로 운영되는 대학도서관이 점차 증가하고 있지만 충분한 사전 작업과 현실적 고려 그리고 효과적인 주제별 운영에 대한 연구 없이 자료의 주제 구분만을 시도한 결과 많은 문제점들이 나타나고 있다. 주제별조직체제로 운영되고 있는 37개 대학도서관을 조사한 결과 효율적인 주제별조직을 위해서는 건물의 구조 및 형태ㆍ각각의 주제별 이용자 수ㆍ장서구성 등을 고려한 합리적 주제구분과 함께 주제별조직을 담당할 인력 즉, 주제사서의 확보가 필수적이라는 사실이 확인되었다. 따라서, 주제별조직 체제가 제대로 정착되기 위해서는 국내 대학도서관 현실에 적합한 주제별조직 모형이 개발되어질 필요성이 있으며 대학도서관 현장에서의 노력 즉, 충분한 지원의 확보와 주제사서의 양성ㆍ확보 방안이 마련되어져야 할 것으로 분석되었다.

• 한국멀티미디어학회논문지
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• 제11권5호
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• pp.710-727
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• 2008

서비스지향 컴퓨팅 시스템은 시스템의 기능적 단위인 서비스들을 재사용함으로 해서 개발 시간과 노력을 줄이는 특성 때문에 분산 환경이 일반화 되면서 더욱 중요하게 부각되고 있다. 서비스의 재사용은 서비스들 간의 느슨한 결합에 의하여 효과적으로 이루어질 수 있다. 그러나 상속 및 포함 관계와 같은 객체지향 시스템의 강한 연관 관계들은 객체들 간에 강한 결합을 생성한다. 상속 관계와 포함 관계가 없는 컴포넌트 기반의 시스템은 컴포넌트들 간에 느슨한 결합을 생성한다. 그리하여 컴포넌트 인터페이스들에 의해서 제공된 기능을 사용해서 실시간에 서비스지향 시스템의 서비스를 실현한다. 따라서 컴포넌트기반 시스템은 기능적 서비스 단위들을 효율적으로 제공하기 위하여 서비스지향 컴퓨팅 시스템으로 확장될 필요가 있다. 또한, 서비스지향 컴퓨팅 시스템을 지원하는 기존의 방법들은 서비스 계층의 명확한 분류 및 서비스 계층에 따른 명확한 서비스 식별 가이드라인 그리고 서비스 계층 간의 매핑 방법을 제시하지 않고 있다. 따라서 본 논문에서는 비즈니스 관점의 서비스와 구현 관점의 서비스를 계층으로 나누어 분류하고 서비스 식별 가이드라인 및 각 계층의 서비스들 간의 매핑을 제안한다. 즉, 우리는 서비스 계층과 다양한 크기의 서비스 식별 방법을 연구하고, 각 계층의 서비스들 간의 매핑 방법을 도출한다. 이를 기반으로 기존 컴포넌트 기반 시스템을 서비스 지향 컴퓨팅 시스템으로 확장할 수 있다.

• 디지털산업정보학회논문지
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• 제8권4호
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• pp.167-175
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• 2012

Service-oriented Architecture(SOA) is one of the most recent trends in IT solutions. SOA is a paradigm for organizing and utilizing distributed capabilities that may be under the control of different ownership domains and implemented using various technology stacks. From a technical perspective SOA, can be considered a method for designing and developing IT systems where applications are constructed from loosely coupled and autonomous building blocks. And SOA is a very effective response to the problems faced by companies in terms of reusability, interoperability and reduce coupling between systems that implement their information systems. To exploit these advantages many organizations have decided to evolve their legacy systems towards this architecture. This paper proposes a modeling for SOA based business process generation and testing, and introduces its implementation in the BPEL. And we analyze business process between enterprises, modeling the service-oriented business process with BPEL to realization level. Also, we suggests that UML is used from high-level business problems to the process of low-level problem for Visual and effectively.

• Journal of Information Processing Systems
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• 제9권3호
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• pp.425-434
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• 2013

In order for end-users in home networks to receive opportunities for useful services that go beyond legacy Internet Protocol TV (IPTV) services, this paper proposes a service platform that resides on the residential gateway (RG) for interworking between the home network and IPTV. This proposed service platform is called the home-oriented IPTV service platform (HISP) on the RG (HISP-RG). The proposed HISP-RG provides open architecture and functionalities to enable 3rd party IPTV service providers to locally and directly deliver home-oriented IPTV services to end-users in home networks. The HISP-RG can be an "add-on" and not a "built-in" solution for the existing standard RG. This paper introduces several home-oriented IPTV services that can be executed and delivered locally through the HISP-RG. Then, the open architecture and functionalities of the HISP-RG are defined and their requirements are specified. Finally, use cases of the HISP-RG for home-oriented IPTV services are presented.

• 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.