問題點QoS的管理——擴展UDDI的功能

1、l 問題點：QoS的管理擴展UDDI的功能簡單地講，就是對原有的UDDI模型進行擴展，一般都不對既存的模型進行修改，而是附加上一些東西（新的角色，中間層次等），使得UDDI也能管理QoS信息，以便更好地為services的用戶提供服務(wù)。Search Keywords: UDDIQoSextend/extension:CSB: The Collection of Computer Science Bibliographies備注：1. 由于這個領(lǐng)域比較新，當(dāng)前能找到的相關(guān)文章比較少；2. 下面的五篇文章只是根據(jù)關(guān)鍵字、題目、摘要以及引用次數(shù)來挑選的，可能存在全文閱讀后發(fā)現(xiàn)所選文章價值不大的情況，

2、因此不排除精讀的文章列表發(fā)生變動的可能性。1. Menasce 2004Menasce, Daniel A., Honglei Ruan and Hassa Gomaa, “A Framework for QoS-Aware Software Components,” In Proceedings of the Fourth International Workshop on Software and Performance, pp. 186-196.About Authors: Dept. of Computer ScienceGeorge Mason UniversityFairfax,

3、VA 22030Cited by: No documents match Boolean query Cited by 9ABSTRACTThe next generation of software systems will be highly distributed, component-based, service-oriented, will need tooperate in unattended mode and possibly in hostile environments, will be composed of a large number of "replace

4、able" components discoverable at run-time, and will have to run on a multitude of unknown and heterogeneous hardware and network platforms. This paper focuses on service oriented-architectures in which each component provides a set of interrelated services to other components. These components

5、are QoS-aware (i.e., aware of Quality of Service requirements) and are capable of engaging in QoS negotiations with other components of a distributed application. The main contributions of this paper are:i) the description of an architecture for QoS-aware software components that are able to negotia

6、te QoS requirements with other components,ii) the specification of the protocols used for QoS negotiationand admission control at the QoS-aware components,iii) a report on the implementation of a QoS-aware component,and iv) the experimental validation of the ideas presentedin the paper.2. Pilioura1

7、2004Pilioura1, Thomi, Georgios-Dimitrios Kapos and Aphrodite Tsalgatidou, “PYRAMID-S: A Scalable Infrastructure for Semantic Web Service Publication and Discovery,” In Proceedings of the 14th International Workshop on Research Issues on Data Engineering: Web Services for E-Commerce and E-Government

8、Applications, 2004, pp. 15-22.About Authors: Thomi Pilioura University of Athens, Dept. of Informatics,Panepistimiopolis, TYPA BuildingsIlisia, 157 84, Athens, GreeceGeorgios-Dimitrios Kapos Aphrodite TsalgatidouHarokopio University of Athens, NOC70 El. Venizelou Str.176 71, Athens, GreeceCited by:

9、No documents match Boolean query ABSTRACTWeb services enhance current web functionality byaltering its nature from document to service-oriented. Asthe number of web services increases, it becomesincreasingly important to provide a scalableinfrastructure of Registries that allows both developersand e

10、nd-users to perform discovery of semantic webenabled services. The discovery of services needs to bebased on QoS characteristics in order to enable resultranking and service selection. Current web servicepublication and discovery mechanisms, such as UDDI,either address these issues partially or not

11、at all. In thispaper, we build on the enabling technologies of WebServices, Peer-to-Peer and Semantic Web in an attempt toaddress all these important dimensions of servicepublication and discovery. More specifically, we use ahybrid peer-to-peer topology to organize Registries basedon domains. In suc

12、h a model, each Registry retains itsautonomy, meaning that it can use the publication anddiscovery mechanisms as well as the ontology of itschoice.3. Day 2004Day, Julian and Ralph Deters, “Selecting the Best Web Service,” In Proceedings of the 2004 Conference of the Centre for Advanced Studies on Co

13、llaborative Research, 2004, pp. 293-307.About Authors: Julian DayRalph DetersDepartment of Computer ScienceUniversity of Saskatchewan, CanadaCited by: No documents match Boolean query Cited by 3ABSTRACTWeb services are applications that communicateover open protocols such as HTTP usingstructured for

14、ms of XML such as the SimpleObject Access Protocol (SOAP 18) or RemoteProcedure Calls for XML (XML-RPC 20).The success of web services is largely basedon the continuous development of standardsthat ensure interoperability. Among the manystandards developed and widely accepted are:the Web Service Des

15、cription Language (WSDL5), used for describing web services' syntax;and the Universal Description, Discovery andIntegration protocol (UDDI 1), often used asa discovery mechanism for dynamically findingnew services. However, there have beenfewer efforts to describe the interactions betweenclients

16、 and services. This paper focuseson augmenting web service clients as a meansfor determining optimal service providers. Asystem is discussed and analyzed for using theResource Description Framework (RDF 14),the Java Expert Systems Shell (JESS), WEKA21, and the Web Ontology Language (OWL16) to augmen

17、t web service clients. Theclients can collect, report, and analyze dataabout their experiences with the quality of service(QoS) of web services, as well as their ownsystem context information. The clients areable to parse and use the reported informationto dynamically select the best service forthei

18、r needs, to re-configure themselves to usethe new service, and continue operation transparently.4. Tian 2004Tian, M., A. Gramm, H. Ritter, J. Schiller, “Efficient Selection and Monitoring of QoS-aware Web services with the WS-QoS Framework,” In Proceedings of the IEEE/WIC/ACM International Conferenc

19、e on Web Intelligence, 2004, pp. 152-158.About Authors:M. Tian, A. Gramm, H. Ritter, J. SchillerFreie Universität Berlin, Institut für InformatikTakustr. 9, D-14195 Berlin, GermanyCited by: No documents match Boolean query ABSTCRATWhile the concept of UDDI supports the automaticdiscovery o

20、f services implementing a common publictModel interface, there have been only few attempts tofind a standardized form to describe the quality of service(QoS) properties of Web services.We introduce our approach “Web service QoS (WSQoS)”that enables an efficient, dynamic, and QoS-awareselection and m

21、onitoring of Web services. The prototypeof our approach is implemented with the .NETtechnology, including the following components: a WSQoSEditor for the specification of QoS properties, a WSQoSRequirement Manager for retrieving QoSrequirements specified by client applications, a Webservice broker f

22、or an efficient and QoS-aware selection ofWeb service offers, and a WS-QoS Monitor for checkingthe compliance of the service offers.5. Fung 2005 Fung, Casey K., Patrick C. K. Hung, Richard C. Linger and Gwendolyn H. Walton, “Extending Business Process Execution Language for Web Services with Service

23、 Level Agreements Expressed in Computational Quality Attributes,” In Proceedings of the 38th Hawaii International Conference on System Sciences, 2005.About Authors:Casey K. FungPatrick C. K. HungMathematics andFaculty of BusinessComputing Technologyand Information TechnologyBoeing Phantom Works,Univ

24、ersity of Ontario Institute of Technology,USACanadaRichard C. LingerGwendolyn H. WaltonSoftwareMathematics andEngineeringComputer Science Dept.InstituteFlorida Southern College,Carnegie MellonUSAUniversity, USACited by: No documents match Boolean queryABSTRACTQuality of Service (QoS) management is c

25、ritical forservice-oriented enterprise architectures becauseservices have different QoS characteristics, requestershave different requirements, and service interactionsare decoupled. This paper proposes a QoS ManagementArchitecture for dynamic processing of service- andflow-level quality attributes

26、to support QoS requests andanalyses in Web-service-oriented architectures. Thearchitecture is implemented using Business ProcessExecution Language for Web Services (BPEL4WS, aninteroperable integration model that facilitatesautomated process integration). The proposed approachextends BPEL4WS by inte

27、grating it with Web service levelagreements (WSLA) to support QoS and extendingthe BPEL4WS language to provide a new“<agreement>” assertion that describes the location of a document's WSLA document. Under the proposed approach, quality attributesare defined, computed, and acted upon as dyn

28、amic characteristics of systems, with values constantly changing in operation The feasibility of the proposed approach isdemonstrated using an illustrative travel reservation serviceflow example.6. Zhang 2003 Zhang, Liang-Jie and Mario Jeckle, “The Next Big Thing: Web Services Collaboration,” ICWS-Europe 2003