• Title/Summary/Keyword: web service

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A Study on Web Service Performance Enhancement Using Tuning Model (튜닝 모델을 이용한 웹 서비스 성능 향상에 관한 연구)

  • Oh, Kie-Sung
    • Journal of Information Technology Services
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    • v.4 no.2
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    • pp.125-133
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    • 2005
  • Because of paradigm change to web service, numerous institutes have been suggested supporting solution about web service, and actively developed system using web service but it is hard to find out a systematic study for web service performance enhancement. Generally, there are SOAP message processing improvement and configuration optimization of server viewpoint for web service performance enhancement. Web service performance enhancement through SOAP message processing improvement have been studied related research but configuration optimization of server is hard to find out a systematic tuning model and performance criteria. In this paper, I suggested performance testing based tuning model and criteria of configuration optimization of server viewpoint. We executed practical analysis using tuning model about web service in internet. This paper show that the proposed tuning model and performance criteria is applicable to web service performance enhancement.

Ontology Language based on Topic Maps for Semantic Web Service (시맨틱 웹 서비스를 위한 Topic Maps 기반의 온톨로지 언어)

  • 황윤영;유정연;유소연;이규철
    • Proceedings of the CALSEC Conference
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    • pp.191-196
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    • 2003
  • The Semantic web service is able to intelligently discover, execute, composite and monitor the Web Service. It constructs the ontology on Web Service and describes the Semantic Markup in the machine-readable form. The currently developing technologies of the Semantic Web Service discovery are DAML-S matchmaker in Carnegie Mellon University, Process Handbook in MIT and etc. In this paper, we propose the ontology language based on Topic Maps that supports the benefits and solves the problems of the Semantic Web Service discovery technologies .

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Dynamic and Open Decision Support System based on Web Services (웹서비스 방식을 기반으로 한 동적 개방형 의사결정지원시스템)

  • Kwon, Oh-Byung
    • Asia pacific journal of information systems
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    • v.13 no.2
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    • pp.145-170
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    • 2003
  • Open Decision Support System(DSS) is an automated and transparent system that is built to be shared both within and across organizations. The open DSS has been thought to be a set of decision components that are communicating through Web protocols. These characteristics intuitively invite the Web services concepts, which are currently one of the new trends in network-based business services. However, web services still are not active enough to be autonomous, and to provide for composing functionalities. These lead to the motivation on building a sophisticated web service to contain these features and to utilize web services on behalf of the user. This paper aims to propose a new concept of Meta Web Service, a web service-based open DSS. Decision modules in a dynamic and open DSS can be viewed as a web service. The Meta Web Service understands the users problem statement with ontology, performs web service discovery, web service composition, and automatically generates codes for composite web service execution. A prototype of example web service has been developed to show the feasibility of the proposed idea.

Web Service Management and Security for On Demand Computing (End-to-end Web Service 관리 및 보안)

  • 이중원
    • Proceedings of the CALSEC Conference
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    • pp.51-55
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    • 2004
  • ·Web Service 적용 -비용절감/새로운 Revenue 창출 기회 ·Business 환경 -SOA(서비스기반구조), 온디맨드, 그리드 컴퓨팅의 기반→Web Service로의 이행 가속화 ·IT Challenge -복잡성과 위험 ·관리 솔루션 -전반적인 관리 요구 -인프라 & Web Service 레벨 ·Web Service 관리 기대 효과 -효율성, 일관성 및 안전성 제공 -근본 원인 분석 기반 제공

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The Implementation of the Web Service for the Conversion of Speech-Recognition Web Page (음성인식용 웹페이지 변환을 위한 웹서비스 구현)

  • Oh, Jee-Young;Kim, Yoon-Joong
    • Journal of Korea Multimedia Society
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    • v.7 no.8
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    • pp.1162-1169
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    • 2004
  • This paper implemented the web service that converts general web page to the web page using the speech recognition and the web service consumer that provides speech recognition service for the web page. This system has the web service consumer, the web service provider that converts the web page and the web service provider that provides speech recognition. The web service provider that converts the web page analyzes general web page by using the regular expression and converts it to the speech-recognition web page. The speech recognizer is the web service providers that implemented in the previous study. As a result of experiment, we show that this system changes web page by analyzing tags and extracts hyperlink.

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A Study on Web Service Security (웹 서비스 보안기술에 관한 연구)

  • 김배현;권문택
    • Convergence Security Journal
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    • v.4 no.2
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    • pp.61-70
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    • 2004
  • Web service technology will be used in various business fields and it will affect business paradigms. But, however, there is no standard so far and we have many problems to be solved in order to insure interoperability and security. Especially we have to solve Web service security for effective utilization of the technology and otherwise, the technology will not be used in the business field. We, therefore, need to develope security technology which fits to the Web service characteristics. This document describes a proposed strategy for addressing security within a Web service environment based on the results of analysis on the Web service security problems.

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A Hybrid Service Orchestration Framework based on BPEL4WS

  • Kim, Sung-Min
    • Journal of information and communication convergence engineering
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    • v.7 no.3
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    • pp.253-257
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    • 2009
  • As the value of B2B integration gets more importance and the business process becomes more complex, BPEL4WS standard has been focused for the solution of the problems which is based on web service technology. Many vendors implement the standard in their systems to integrate B2B and web service based inner-Enterprise Application(EA)s. But there is no way to use the standard to integrate non-web service based EAs, because the standard is designed only for Service Oriented Architecture (SOA) over web services. This paper proposes Hybrid Service Orchestration Framework to participate web services and also non-web service based EAs in the business process as a partner using BPEL4WS standard. The framework introduces Hybrid Service Architecture to represent non-web service based EAs as a service, so BPEL4WS could be used to integrate web services and non-web service based EAs. And the framework also introduces Hybrid Service Toolkit to support software level facilities. The paper also introduces Hybrid Orchestration System that is based on Hybrid Service Orchestration Framework.

Implementation of Kalman Filter as a Remote Procedure Call Webservice (원격 프로시저 호출 웹서비스로 칼만필터 구현)

  • Yim, Jaegeol;Du, Vu Quang
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.1365-1368
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    • 2011
  • The Kalman Filter is one of the most common techniques of tracking mobile user. Web service is a promising method of reusing programs. Therefore, this paper presents our implementation of Kalman Filter web service. There are three ways of implementing a web service system. Ours is Kalman filter as RPC web service.

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A Study on Quality Broker to Users Web Service Selection Based on Non-Functional Attributes

  • Sim, Sung-Ho;Song, Young-Jae
    • International Journal of Contents
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    • v.5 no.3
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    • pp.8-13
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    • 2009
  • The recent Web service field emerges as the fastest growing IT paradigm as a result of the increasing interest in SOA (Services-Oriented Architecture) and the expansion of B2B market. With an increasing number of Web service that provide similar features, it becomes more important to provide the most appropriate service for the user's request. A service user in general requires the quality information of Web service when selecting a service among a number of similar Web services. Yet, finding a service through UDDI (Universal Description, Discovery and Integration) does not consider the non-functional aspects of users because it is only based on the functional aspects. That is, the quality, non-functional aspect will be an important factor for the mutual success of the user and provider. Using 3 factors in the Qos factors of the existing studies: the execution cost, reliability, and the quality level, the QoS of Web service is saved and the factors for the QoS are recorded in order to consider non-functional factors when selecting a Web service in this study. The Quality Broker determines the rank and shows the desired result of the service for users. The Quality Broker suggested in this thesis can be used to select a Web Service that considers the user-oriented and non-functional factors.

Access Method Improve Study for UDDI on Web Service (웹 서비스에서 UDDI 접근 방식의 개선 방안)

  • 최유순;소경영;박종구
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.7 no.1
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    • pp.1-8
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    • 2003
  • Information searched in UDDI transfer web service user. Then web service user require interface to web service publisher. In this paper, we abbreviate procedure it. UDDI require WSDL document to web service publisher. For this reason, UDDI transfer XML form message to publisher. Message include user's location information and UDDI required document transfer from publisher to user. Message using SOAP protocol of XML format.