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1、Webservicesand dataintegrationS.AbiteboulOmarBenjellounTovaMiloINRIAandXylemeINRIAINRIAandTelAvivOrganizationThecontextAccessinginformationontheWebWebservicesSOAPWSDLUDDIActiveXMLAXMLdocumentsAXMLservicesArchitectureetimplementationApplicationsConclusionThecontextTheWebandXMLarechangingdramatica
2、llythemanagementofdistributedinformationDistributeddatamanagementWarehousingMediationManagementofdataincooperativeworkManagementofdataindistributedscientificapplicationsMobiledatamanagementDocumentmanagementWebsitesPortals,etc.InformationusedtoliveinislandsandthisischangingTheWebofyesterdayProto
3、col:HTTPDocuments:HTMLMillionsofindependentWebsitesandbillionsofdocumentsBrowsingandfull-textindexingPublicationofdatabasesusingformsDatamanagementwiththeWebHTMLisprimarilytobereadbyhumansDatamanagementapplicationsoverWebdataBasedonhand-madewrappersExpensive,incomplete,short-lived,notadaptedtoth
4、eWebconstantchangeNorealsupportfordistributeddatamanagement!InformationusedtoliveinislandsbutitischangingDifferentformats:relational,metadata,documents,textAWebstandardfordataexchange,XML,isfixingitXMLcapturesallkindsofinformationoverawidespectrumXMLcomeswithafamilyofemergingstandards:XMLschema,
5、XSL/T,Xquery,domainspecificschemas…Differentcomputers,platforms,languages,applicationsAstandardforWebservices,SOAP,isfixingitSOAPallowsubiquitouscomputingontheInternetSOAPcomeswithafamilyofemergingstandards:WSDL,UDDIThisprovidesauniformaccesstoinformation……thedreamfordistributeddatamanagementThe
6、informationspectrumStructuredDataMinimalstructureMetadataHierarchy+BooksContractsCatalogsBankaccountsEmailsFinancialReportsInsurancePoliciesEconomicalAnalysisDerivativesInventoryPoliticalanalysisInsuranceClaimsFinancialNewsSportsNewsResumesSemi-structureddataandXMLWhatcanbecapturedwithXML?Veryst
7、ructuredinformationsuchasdatabase,knowledgebaseMostDBMSnowexportinXMLSemi-structureddatasuchasdataexchangeformats(ASN.1,SGML),e.g.,technicaldocumentationLessstructureddata:documentsMeta-data:Author,date,statusExistingstructu
