Applying orchestration and choreography of web services on dynamic virtual marketplaces

The Service-Oriented Architecture promises to be an affordable solution for the integration of heterogeneous systems through the Internet. In the e-Business field, this promise represents a great chance for companies to increase competitiveness and to enable the enactment of new collaborative e-Business processes. In this paper, we present a Virtual Marketplace infrastructure, the VM-Flow, which uses Dynamic Composition of Web Services (Orchestration and Choreography) as a fundamental technique to enable interorganizational business interactions in the context of Dynamic Virtual Enterprises. The VM-Flow platform is workflow-based and also introduces a series of interaction policies to deal with aspects like autonomy and privacy. A platform model is presented together with details on the infrastructure prototype and on an application built over it.151578

Transparency In Citizen-centric Services - A Traceability-based Approach On The Semantic Web

The search for effective strategies to increase the transparency in public administration processes is becoming a key issue for governments and for the success of the new citizen-centric services and applications. Also, the application of service-oriented architectures, semantics and ontologies is gaining momentum as an alternative to fulfill the inherent e-Government interoperability and dynamism demands. Considering the challenges introduced by this new scenario, this paper contributes proposing an approach to monitor and audit composite e-Government services. The solution is based on a set of Traceability Policies modeled and implemented over a semantically-enriched and service-oriented middleware (CoGPlat).SAIC184189Barnickel, N., Fluegge, M., Schmidt, K.-U., Interoperability in egovemment through cross-ontology semantic web service composition (2006) Workshop Semantic Web for eGovernment, , MontenegroBerners-Lee, T., Hendler, J., Lassila, O., The semantic web (2001) Scientific American, 284 (5), pp. 34-43Bukovics, B., (2007) Pro WF: Windows Workflow in .NET 3.0, , ApressFileto, R., Liu, L., Pu, C., Assad, E.D., Medeiros, C.B., Poesia: An ontological workflow approach for composing web services in agriculture (2003) The VLDB Journal, 12 (4), pp. 352-367GOV, (2006) Citizen Centric Government (White Paper), , www.intel.com/go/government, 3 , The GOV3 Foundation(1990) IEEE Standard Computer Dictionary: A Compilation of IEEE Standard Computer Glossaries, , IEEE , New York, NY(1994) ISO, 8402, p. 1994. , Quality management and quality assurance, Vocabulary. ISOJefferson, T. (1789). Personal communication to R. Pricewww.kbst.bund.de/saga, KBSt 2006, SAGA, Standards and Architectures for eGovernment Applications, Version 3.0. German Federal Ministry of InteriorKlusch, M., Fries, B., Sycara, K., Automated semantic web service discovery with owls-mx (2006) Proc. of the 5th Intl. joint conference on Autonomous agents and multiagent systems (AAMAS), pp. 915-922. , USA. ACMMedjahed, B., (2004) Semantic Web Enabled Composition of Web Services, , PhD thesis, Virginia Polytechnic Institute and State UniversityMedjahed, B., Bouguettaya, A., Customized delivery of e-govemment web services (2005) IEEE Intelligent Systems, 20 (6), pp. 77-84Narayanan, S., McIlraith, S.A., Simulation, verification and automated composition of web services (2002) Proc. of the 11th Intl. WWW Conf, pp. 77-88. , ACM PressPapazoglou, M., Georgakopoulos, D., Service-oriented computing (2003) Communications of the ACM, 46 (10), pp. 25-28Santos, I.J.G., Madeira, E.R.M., Applying orchestration and choreography of web services on dynamic virtual marketplaces (2006) International Journal of Cooperative Information Systems, 15 (1), pp. 57-85Santos, I. J. G., Madeira, E. R. M., and Tschammer, V. (2005). Towards dynamic composition of e-govemment services - a policy-based approach. In 5th IFIP Intl. Conf. on e-Commerce, e-Business and e-Government (I3E), pages 173-185. SpringerW3C (2005). Web Service Modeling Ontology (WSMO) Primer. http://www.w3.org/Submission/WSMO-primer/. Member SubmissionW3C (2007). Semantic Annotations for WSDL and XML Schema (SA-WSDL). http://www.w3.org/TR/sawsdl

Challenges And Techniques On The Road To Dynamically Compose Web Services

One of the great challenges to be faced in order to enable the success of future Web-based applications is to find effective ways to handle with the interoperability demands. In this context, Service-Oriented Architectures and Web Services technology are being considered as the most affordable solution to promote interoperability, by applying strategies like Service Composition. Nevertheless, most composition approaches applied nowadays in real world contexts lack dynamism. In fact, there is not yet a consensus regarding what would really be a dynamic composition. In this paper we propose some criteria to identify the levels of dynamism and automatization in service compositions. Furthermore, taking into account a model driven approach, we propose a strategy where different techniques can be used to make compositions more dynamic and automatic. This strategy is then exemplified and discussed considering an e-Government composition scenario.4047Bzivin, J., Hammoudi, S., Lopes, D., Jouault, F., Applying mda approach for web service platform (2004) Proc. of the 8th IEEE Intl Enterprise Distributed Object Computing Conference (EDOC 2004), pp. 58-70F. Casati, S. Ilnicki, L.-J. Jin, V. Krishnamoorthy, and M.-C. Shan, eflow: A platform for developing and managing composite e-services. HP Labs Technical Report HPL-2000-36, HP Software Technology Laboratory, Palo Alto, CA, Mar. 2000UN/CEFACT Modeling Methodology (UMM) User Guide CEFACT/TMG/N093, , http://www.unece.org/cefact/umm/umm_index.htm, CEFACTT. O. S. Coalition. Owl-s: Semantic markup for web services. White paper - http://www.daml.org/services, July 2004Dogac, A., Kabak, Y., Laleci, G., Sinir, S., Yildiz, A., Kirbas, S., Gurcan, Y., Semantically enriched web services for the travel industry (2004) A CM Sigmod Record, 33 (3). , Sepdos Santos, I.J.G., Madeira, E.R.M., Applying orchestration and choreography of web services on dynamic virtual marketplaces (2006) International Journal of Cooperative Information Systems (IJCIS), 15 (1), pp. 57-85. , MarP. D. et al. The Digital Ecosystem research Vision: 2010 and Beyond, www.digitalecosystems.org/events/2005.05/de_position_paper_vf.pdf, July 2005. Position PaperFeier, C., Domingue, J., The Web Service Modeling Language WSML (2005) DERI International, WSML Final Draft, , AprFluegge, M., Tourtchaninova, D., Ontology-derived activity components for composing travel web services. The Intl (2004) Workshop on Semantic Web Technologies in Electronic Business (SWEB2004), , Berlin, Germany, OctFrankel, D., Scaling the business process platform up (2005) MDA Journal, , - http://www.bptrends.com, Dec(1990) IEEE Standard Computer Dictionary: A Compilation of IEEE Standard Computer Glossaries, , IEEE, New York, NYUse of UML for ODP system specifications. ISO/TEC, JTC1/SC7 N3419 (2005), ISO, CD 19793.2Lin, M., Guo, H., Yin, J., Goal description language for semantic web service automatic composition (2005) Proc. of the 2005 Symposium on Applications and the Internet, pp. 190-196Milanovic, N., Malek, M., Current solutions for web service composition (2004) IEEE Internet Computing, 8 (6), pp. 51-59. , Nov.-Dec(2003) MDA Guide Version 1.01, , http://www.omg.org/cgi-bin/apps/ doc7omg/03-06-01.pdf, OMGPatrascoiu, O., Mapping edoc to web services using yatl (2004) Proc. of the 8th IEEE Intl. Enterprise Distributed Object Computing Conference (EDOC 2004), pp. 286-297Peltz, C., Web services orchestration and choreography (2003) IEEE Computer, 36 (10), pp. 46-52Ponnekanti, S.R., Fox, A., Sword: A developer toolkit for web service composition (2002) Proc. of the 11th WWW Conference, Honolulu, USARao, J., Su, X., A survey of automated web service composition methods (2004) Proc. of 1st Intl. Workshop on Semantic Web Services and Web Process Composition, , JulyRoss-Talbot, S., Bharti, N., (2005) Dancing with Web Services: W3C chair talks choreography, , http://searchwebservices.techtarget.com, MarSirin, E., Hendler, J., Parsia, B., Semi-automatic composition of web services using semantic descriptions (2003) Proc. of Web Services: Modeling, Architecture and Infrastructure workshop in conjunction with ICEIS2003Tizzo, N.P., Borelli, J.R., de Jesus Mendes, M., Damasceno, L., Kamata, A., Figueiredo, A., Rodrigues, M.A., Junior, J.G.S., Service composition applied to e-government (2004) IFIP 18th World Computer Congress, Building the E-Service Society: E- Commerce, E-Business and E-Government, pp. 307-326. , Kluwer Academic Publisher