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METEOR-S at LSDIS lab!0!0 Adding semantics to different layers of Web services conceptual stack Applying* semantic Web techniques to industry accepted Web services standards for better Web service description to solve the problems of scalability and heterogeneity in Web service discovery, selection and composition * Use of ontologies to provide underpinning for information sharing and semantic interoperability ZkZZeZZ  f    ̙ ̙ ̙  fP+%Semantics at Different Layers,&'Semantics at Different Layers (contd..)( -''Semantics at Different Layers (contd..)( .(Semantics in METEOR-S/)2Scope of Semantic Web with respect to Web Services330*Semantics for Web ServicesData/Information Semantics Formal definition of data in input and output messages of a web service for discovery and interoperability by annotating input/output data of web services using ontologies Functional/Operational Semantics Formally representing capabilities of web service for discovery and composition of Web Services by annotating operations of Web Services as well as provide preconditions and effects; Annotating TPA/SLA Execution Semantics Formally representing the execution or flow of a services in a process or operations in a service for analysis (verification), validation (simulation) and execution (exception handling) of the process models using State Machines, Petri nets, activity diagrams etc. QoS Semantics Formally describing operational metrics of a web service/process To select the most suitable service to carry out an activity in a process using QoS model [Cardoso and Sheth, 2002] for web services $Z$Z!$Z$Z$Z $Z$Z$ZZ3 L #f 6   $    f  2   f  D    G     -      P2+*Semantics for Web Service usage life cycle3,*Semantics for Web Service usage life cycle4-*Semantics for Web Service usage life cycle5.*Semantics for Web Service usage life cycle6/*Semantics for Web Service usage life cycle70*Semantics for Web Service usage life cycle91-METEOR-S components for Semantic Web Services->5:Search for services to book air ticket (using categories)*unspsc-org: unspsc:3-1 Travel, Food, Lodging and Entertainment Services Travel facilitation Travel agents Travel agencies Services: 3 records found. AirFares Returns air fares from netviagens.com travel agent Hotel reservations Reservations for hotels in Asia, Australia and New Zealand Your Vacation Specialists Web enabled vacation information Providers: 2 records found. 3?0???  ???5 % ># !0G!0J]!0_l!0nu!0!0!0(A?68Search for services to book air ticket (using keywords)*air ticket 1 record with name air tickets booking airticket, ticketbooking, airtravel, air travel, travel agent, airticketbooking, air ticket booking, travel agency, travelagency 0 records were returned travelagent 1 record with name travelagent test 4 services: BookFlight, cancelFlightBooking etc. Descriptions say that both these services are  XML based Web services No URL for WSDL Travel 15 records. Purpose/functionality understood from descriptions 2 services : TravelBooks 4 services : TravelInformation 2 services : Reservation and cancallation of travel tickets 1 service : Emergency Services for travellers 1 service : Travel documentation and itinerary 5 services : Description is ambiguous/not present  Z)ZZZ Z%ZZZ?ZZZ 1      f   " 3 3   24   %       5 dSemantic Discovery: OverviewAnnotation and Publication WSDL file is annotated using ontologies and the annotations are captured in UDDI Discovery Requirements are captured as templates that are constructed using ontologies and semantic matching is done against UDDI entries Functionality of the template, its inputs, outputs, preconditions and effects are represented using ontologies Use of ontologies brings service provider and service requestor to a common conceptual space helps in semantic matching of requirements and specifications(ZQZ ZZoZZZ  f;  fZo  33 f$"Semantic Publication and Discovery##( &WSDL-S (WSDL with Semantic Annotation)'' Mapping Input and Output Message Parts to Ontology XML Schema elements used in Input/Output messages do not reflect the semantics of the data involved in Web Service operation Use of ontologies or standard vocabulary* brings service provider and requestor to common conceptual space providing well defined semantics for operational data Mapping Operations to Ontology Service selection involves discovering appropriate WSDL description and locating an operation to invoke Operations with same signature could have different functionalities Ontology or vocabulary depicting functionality is used for annotation Additional tags to represent pre-conditions and effects of each operation Preconditions and effects are added for each operation Can be optionally used for service discovery and selection * RosettaNet Business/Technical dictionary or ebXML Core Component catalog/dictionary The focus of our work is not in developing ontologies for representing functionality/preconditions/effects but to use such ontologies for semantic annotation3ZZZZJZsZZ! x   T    @ r   ( f (  ,# "Annotation Syntax*Each Operation in WSDL is annotated using an fully qualified attribute name-value pair in the operation element under portType element. The attribute name is operation-concept Each Message part is annotated using a fully qualified attribute name-value pair in the part element under message element. The attribute name is onto-concept Preconditions and effects are respectively represented using fully qualified additional tags with the names precondition and effect. These elements have two attributes name (optional) and precondition-concept (or effect-concept). Each operation can have multiple precondition and effect elements. * conforms to extensibility support in WSDL version 1.2 `{Z9ZZ 9    f 0 3   3 4 %  ff  9,v2!WSDL Annotation Example  Semantics in UDDItModels are used to categorize and characterize service entries in UDDI (limited form of semantics) Our approach uses categorizes* (using metadata constructs tModels and CategoryBags) the services in UDDI based on the semantic annotations * similar to [Paolucci et al.]  ] : 9 H H  ,Semantic Categorization of Services in UDDI*@7,Semantic Categorization of Services in UDDI*A8,Semantic Categorization of Services in UDDI*B9,Semantic Categorization of Services in UDDI*,Semantic Categorization of Services in UDDI*Discovery using UDDI APIXServices are matched if their CategoryBags are a subset of the CategoryBag used in search (find_service) According to UDDI version 3 specification CategoryBags can be constructed using KeyedReferenceGroups. So groups can be constructed using the semantics of operation, inputs, outputs, preconditions and effects and search can be carried out.*YZiP  I  Discovery using UDDI APIOur implementation used UDDI Version 1 API KeyedReferenceGroups are not supported Each operation is grouped with its operation-concept, input and output onto-concepts each as a keyedReference in the keyedReferenceVector as tModelKey =  OpTModel KeyValue =  operation-concept KeyName =  OpName tModelKey =  InTModel KeyValue =  onto-concept KeyName =  OpName tModelKey =  OutTModel KeyValue =  onto-concept KeyName =  OpName OpTModel: Key for the tModel representing functional semantics of the operation named  OpName in a WSDL file linked to the UDDI entry InTModel: Key for the tModel representing semantics of the inputs of the operation named  OpName in the WSDL OutTModel: Key for the tModel representing semantics of the outputs of the operation named  OpName in the WSDL operation-concept: Fully qualified Id of a class in a functional ontology represented by OpTModel onto-concept: Fully qualfied Id of a class in a ontology that is used to annotate inputs (or outputs) represented by InTModel (or OutTModel)+ZZRZ2Z+ ff3    f     3    3    33     3    3    fO    3*      fR    3      33S    3        fH    f  f  f   3h    f  33  fl+q     :3 > ?[  X  :3Summary of Steps in DiscoveryServices selection based on the functional requirements Using operation-ontology mapping Ranking based on semantic similarity based on input/output semantics of candidate services and requirement template Using message part-ontology mapping Optional step includes semantic similarity based on semantics of preconditions/effects of the candidate services and requirement template Using precondition and effect tags <8" Z"" Zt" Z%" Z" Z#" Z" Z8 t          ConclusionslSemantics is the enabler to address the problems of scalability, heterogeneity (syntactic and semantic), machine understandability faced by Web services Semantics can be applied to different layers of Web Services conceptual stack Semantics for Web Services can be categorized into atleast 4 different dimensions namely Data, Functional, Execution and Quality. >mZ N I  References[Kreger] http://www-3.ibm.com/software/solutions/webservices/pdf/WSCA.pdf [Sivashanmugam et al.-1] Adding Semantics to Web Services Standards [Sivashanmugam et al.-2] Framework for Semantic Web Process Composition [Verma et al.] MWSDI: A Scalable Infrastructure of Registries for Semantic Publication and Discovery of Web Services [Chandrasekaran et al.] Performance Analysis and Simulation of Composite Web Services [Cardoso et al.] Modeling Quality of Service for Workflows and Web Service Processes [Silver et al.] Modeling and Simulation of Quality of Service for Composition of Web Services [Paolucci et al.] Importing Semantic Web in UDDI [UDDI-v3] http://uddi.org/pubs/uddi-v3.00-published-20020719.htmA=oG   !0 I!0fC: Thank you /8  ` ` ̙33` 333MMM` ff3333f` f` f` 3` f3>?" dd@,ff|?" dd@   " @ ` n?" dd@   @@``PR    @ ` `p>> (    08#" ` >   6    T Click to edit Master title style! !  0   RClick to edit Master text styles Second level Third level Fourth level Fifth level!     S  0 ``  >*  0x `   @*  0  `   @*p  S :Alablogo_anim"0H  0޽h ? f3 Default Design  0Q(    0$w#" ` >   6y p  T Click to edit Master title style! !  0  `    W#Click to edit Master subtitle style$ $  0p ``  >*  0 `   @*  0` `   @*p  S :Alablogo_anim"0H  0޽h ? f30 (    0D P   D T*      0D    D V*(   d  c $ ?  D  0KD  @ D RClick to edit Master text styles Second level Third level Fourth level Fifth level!     S  6D `P  D T*      6D `  D V*(   H  0޽h ? ̙33   8(     0 D P   D >*   0#D    D @*   6dm `P  D >*   6\ `  D @* H  0޽h ? ̙33 @$(  r  S tPp`  r  S 0@`    H  0޽h ? f3  4$(  4r 4 S JK   P r 4 S HC C H 4 0޽h ? f3  P ((  x  c $8    z       ,$D 0`  0    6| `  ; Description     6ė `0  9 Messaging     6H0 `P  7Network  0Д`` 0 : 2   0R ,$D0 7/Description:Web Service Description Language (WSDL) To describe Web Service interfaces and implementations Details in WSDL files (data types, operations, binding details, access location) are used for service invocation Messaging:(SOAP) XML based messaging protocol Network:(HTTP) Network protocol 4             2 )   Z ?"U d1 [Kreger]0ZH  0޽h ? f3N     ` (    0̙ ,$D0r  S       0| ,$D0 9wPublication:(UDDI) To make service descriptions available for search Discovery:(UDDI) To locate service descriptions   3    !   3 <l `0  `0 ,$D 0  6`0 ,$D 0 ; Publication    6 ̙`,$D 0 9 Discovery  z       ,$D 0`  0    6 `  ; Description    6 `0  9 Messaging    610 `P  7Network  6f@``,$D 0 4FlowV  0T& ,$D0 \Flow:(BPEL4WS, WSCI etc.) To compose web services to form a composite web service / processJ  C  C  Z ?"U d1 [Kreger]0ZH  0޽h ? f3  p$(  r  S @    r  S   H  0޽h ? f3  <*(  <x < c $    r < S |  H < 0޽h ? f3U      (  x  c $      0̙ ,$D0Jz `0   `0 ,$D 0  6D`0 ,$D 0 ; Publication    68y̙`,$D 0 9 Discovery  X  0    6, ` ,$D 0 ; Description    6`. `0  9 Messaging    6d70 `P  7Network  6|Rf@``,$D 0 4Flowx2  B ?" @ ~2  H >?" @   0=CS,$D0 Description Layer: Why: Reason about the functionality of the services and the semantics of the operational data How: Using Ontologies to semantically annotate WSDL constructs (conforming to extensibility allowed in WSDL specification version 1.2) to sufficiently explicate the semantics of the data types used in the service description and functionality of the service Present scenario: WSDL descriptions are mainly syntactic (provides operational information and not functional information) Semantic matchmaking is not possible ( 0ZZ0Z0Z0ZM0 Z0Zi0Z%    f6f f% f C     @`H  0޽h ? f3  VN (  x  c $8C   C   0̙ ,$D0Jz `0   `0 ,$D 0  6VC`0 ,$D 0 ; Publication    6?"`   0dCS$D0|___PPT9^V Publication and Discovery Layers: Why: Enable scalable, efficient and dynamic publication and discovery (machine processability / automation) How: Use of ontology to categorize registries based on domains and characterize them by maintaining the properties of each registry relationships between the registries Capturing the WSDL annotations in UDDI Present scenario: Suitable for simple searches ( like services offered by a provider, services that implement an interface, services that have a common technical fingerprint etc.) Categories are too broad Automated service discovery (based on functionality) and selecting the best suited service is not possible #( 0Zi0Z0Zc0ZC0Z*0Z0Z' 0Z  !kc    f      * *,t= @`H  0޽h ? f3    ] (  x  c $LC   C   0̙ ,$D0Jz `0   `0 ,$D 0  6ؓC`0 ,$D 0 ; Publication    6C̙`,$D 0 9 Discovery  X  0    6}C ` ,$D 0 ; Description    6C `0  9 Messaging    6C0 `P  7Network  60Cf@``,$D 0 4Flowx2  B ?" @ ~2  H >?"Z  0C0,$D0 pFlow Layer: Why: Design (composition), analysis (verification), validation (simulation) and execution (exception handling) of the process models To employ mediator architectures for automated composition, control flow and data flow based on requirements How: Using Functionality/preconditions/effects of the participating services Knowledge of conversation patterns supported by the service Formal mathematical models like process algebra Simulation techniques Present Scenario: Composition of Web services is static. Dynamic service discovery, run-time binding, analysis and simulation are not supported directly  ( 0Z0Z0Z0ZB0 Z0 Z0Z0Z0 Z     #  f   f: 3 @`H  0޽h ? f3     L (  x  c $C   C   0̙ ,$D0Jz `0   `0 ,$D 0  6C`0 ,$D 0 ; Publication    6HC̙`,$D 0 9 Discovery  X  0    6C ` ,$D 0 ; Description    6HC `0  9 Messaging    6C0 `P  7Network  6hCf@``,$D 0 4Flowx2  B ?" @ ~2  H >?" @ x2  B >?"` ~2  H >?"1  N C ??" &  cMWSDI: Scalable Infrastructure of Registries for Semantic publication and discovery of Web Services&d  f_  NC ??"@  @  w+MWSDI: Semantic Annotation of WSDL (WSDL-S)0,  f%  N0C ??" p s1MWSCF: Semantic Web Process Composition Framework&2  f-H  0޽h ? f3|  ,$//(  r  S ̵N``  N R  S *A cube6 z P /   P ,$D0  0,N  / jGen. 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P ,$D  0 NData / Information Semantics 2  TUC̙?"0 ``,$D 0 IPublication / Discovery 2  ZG9VHI!f?" ,$D0  B"C ?"`j ,$D 0 `,WSDL, WSEL DAML-S Meteor-S (WSDL Annotation)-(2-   Bd ?" `,$D 0 i5UDDI WSIL, DAML-S METEOR-S (P2P model of registries) 6(26 B  TD?"  ,$D  0B  TD?" ` ,$D  0B  @ TD?" ` ,$D  0[  B& ?"P  ,$D  0 ?BPWS4J, Commercial BPEL Execution Engines, Intalio n3, HP eFlow@(2@ ,+2  TD?"`@,$D 0 X&Development / Description / Annotation'' 2  TD?"0 ``,$D 0 = Composition   2  TD?"`@,$D 0 ; Execution     BLD ?" o,$D 0 h4BPEL, BPML, WSCI, WSCL, DAML-S, METEOR-S (SCET,SPTB)5(25   c D0e0e    D H  0޽h ? ̙33  >60 (    Tl1E̙?"P  ,$D  0 T"Functional / Operational Semantics## 2  T5E̙?"0 ``,$D 0 IPublication / Discovery 2  ZG9VHI!f?" ,$D 0  BT9E ?"` ,$D 0 a-WSDL, WSEL DAML-S Meteor-S (WSDL Annotation) .(2.   B=E ?" `,$D 0 i5UDDI WSIL, DAML-S METEOR-S (P2P model of registries) 6(26 B  TD?"  B  TD?" P B  @ TD?"  [  B+B#style.visibility<*%(D' =-6B+checkerboard(across)*<3<*+<  p|(  r  S LD   D   0!K `` j Discovery Infrastructure (MWSDI) Semantic Annotation of Web Services 1 Semantic Peer-to-Peer network of Web Services Registries 2 Composer SCET: Service Composition and Execution Tool 3 Semantics process template builder and Process generator 4 QoS Management Specify, compute, monitor and control QoS (SWR algorithm) 5 Orchestrator (Under development) Analysis and Simulation 6 Execution Monitoring 6 1 [Sivashanmugam et al.-1], 2 [Verma et al.], 3 [Chandrasekaran et al.], 4 [Sivashanmugam et al.-2], 5 [Cardoso et al.], 6 [Silver et al.] !% a   % y  <% !% 3   !f# :  f- : :      f            t2 f )H  0޽h ? f3  ,(  x  c $    r  S 0     HP ?"  t@* Search carried out in one of the Universal Business RegistriesA  2AH  0޽h ? f3  0(  x  c $d    x  c $    Hm ?"W r@* Search carried out in one of the Universal Business RegistriesA 2AH  0޽h ? f3  l*(  lx l c $XK   K r l S YKPp K H l 0޽h ? f3  dB(  dcl `  d` ,$D0 d H?"` ,$D0% d HxkK ?"P( aUse of ontologies enables shared understanding between the service provider and service requestorb  2bx d c $lK`0  K R d s *LzL d S A ??C"8 $D 0 d HP&E ?"  [For simplicity of depicting, the ontology is shown with classes for both operation and data\  2\H d 0޽h ? ̙33  D*(  Dx D c $    r D S `   H D 0޽h ? ̙33  L*(  Lx L c $qK   K r L S trK`  K H L 0޽h ? ̙33   l d  (  x  c $vK   K D  0KT @<?xml version="1.0" encoding="UTF-8"?> <wsdl:definitions xmlns:LSDISOnt=lsdis.cs.uga.edu//METEORS/TravelServiceOntology.daml & .. > <wsdl:message name="OperationRequest"> <wsdl:part name="in0" type="tns:TravelDetails" LSDISExt:ontoconcept= "LSDISOnt:TicketInformation"/> </wsdl:message> <wsdl:portType name="TravelArragement"> <wsdl:operation name="buyTicket" parameterOrder="in0" LSDISExt:operation-concept="LSDISOnt:TicketBooking"> <wsdl:input message="intf:OperationRequest" name="buyTicketRequest"/> <wsdl:output message="intf:OperationResponse" name="buyTicketResponse"/> <LSDISExt:precondition name="ValidCreditCard" LSDISExt:precondition-concept="LSDISOnt:ValidCreditCard"/> </wsdl:operation> </wsdl:definitions>J!03333 3*(           -!0[H  0޽h ? f3  $*(  $x $ c $K   K r $ S K K H $ 0޽h ? ̙33  NF#P(  Px P c $tK   K  P <l2  7Service  P <850 pP  ,KeyedReferenceGroup (SemanticGroupTModelKey),- $  P <: p  ,KeyedReferenceGroup (SemanticGroupTModelKey),- $ P <,A  W CategoryBag   ^"  P 6GHwVIPFx^2  P 6ZGHfIx LB  P c $D @ LB P c $D@ @ ? P <R Pp CTmodelKey:OperationalTModelKey, Value:TicketBooking, Name:buyTicket$D:  3H     P <L0 P  1TmodelKey:InputTModelKey, Value:TicketInformation22 6   P <KP P@  1TmodelKey:OutputTModel, Value:ConfirmationMessage22 6  LB P c $Dpp LB P c $D p LB P c $D p LB P c $D@ p ` LB P c $D@ p p P 0K : 2  P 0K` Z _-* conforming to UDDI Version 3 spec [UDDI-v3]. 2.H P <` PP  LTmodelKey:OperationalTModelKey, Value:TicketCancellation, Name:cancelTicket$M@  fH     P <K P 1TmodelKey:InputTModelKey, Value:TicketInformation22 6   !P <K P 1TmodelKey:OutputTModel, Value:ConfirmationMessage22 6  LB "P c $D@ p  #P HpK ?"@J lFor the example discussed earlier: Travel Arrangement Service with two operations buyTicket and cancelTicket>m  2R 3 f,R  H P 0޽h ?/@PP PPP P ̙33  ^V (   ~   s *K   K    <8K  7Service    <K0 pP  ,KeyedReferenceGroup (SemanticGroupTModelKey),- $    <K p  ,KeyedReferenceGroup (SemanticGroupTModelKey),- $   <K  W CategoryBag   ^"   6GHwVIPFx^2   6ZGHfIx LB   c $D @ LB   c $D@ @    BMfԔ Pp "NTmodelKey:OperationalTModelKey, Value:TravelOnto:TicketBooking, Name:buyTicketVO&    f  3Z    *   <M0 P  <TmodelKey:InputTModelKey, Value:TravelOnto:TicketInformation== H  3   < MP P@  ETmodelKey:OutputTModelKey, Value:GeneralTradeOnto:ConfirmationMessageFF H LB   c $Dpp LB   c $D p LB   c $D p LB   c $D@ p ` LB   c $D@ p p   0M : 2 X   <M` PP  XTmodelKey:OperationalTModelKey, Value: TravelOnto:TicketCancellation, Name:cancelTicketYY Z   +   <$M P =TmodelKey:InputTModelKey, Value: TravelOnto:TicketInformation>> H  5   < M P GTmodelKey:OutputTModelKey, Value: GeneralTradeOnto: ConfirmationMessageHH H LB   c $D@ p    HD&M ?"0. Operation-ontology mapping in WSDL for buyTicket operation <operation name= buyTicket operation-concept= TravelOnto:TicketBooking >;( 2J  2'f 3 f3  fP'       0P3M` Z _-* conforming to UDDI Version 3 spec [UDDI-v3]. 2.H   0޽h ?/@       ̙33  wo $(  $~ $ s *9M   M  $ <8;M  7Service  $ <XM0 pP  ,KeyedReferenceGroup (SemanticGroupTModelKey),- $  $ <DM p  ,KeyedReferenceGroup (SemanticGroupTModelKey),- $ $ <KM  W CategoryBag   ^" $ 6GHwVIPFx^2 $ 6ZGHfIx LB  $ c $D @ LB  $ c $D@ @ ?  $ <OM Pp CTmodelKey:OperationalTModelKey, Value:TicketBooking, Name:buyTicket$D:  3H   V  $ BhVMfԔ0 P  <TmodelKey:InputTModelKey, Value:TravelOnto:TicketInformation<=     H  4  $ <X^MP P@  FTmodelKey:OutputTModelKey, Value: GeneralTradeOnto:ConfirmationMessageGG H LB $ c $Dpp LB $ c $D p LB $ c $D p LB $ c $D@ p ` LB $ c $D@ p p $ 0eM : 2 W $ <hM` PP  WTmodelKey:OperationalTModelKey, Value:TravelOnto:TicketCancellation, Name:cancelTicketXX Z   1 $ <oM P CTmodelKey:InputTModelKey, Value: GeneralTradeOnto:TicketInformationDD H 1 $ <tM P CTmodelKey:OutputTModel, Value: GeneralTradeOnto:ConfirmationMessageDD H  LB $ c $D@ p  $ HzM ?"0 V:Input Message part-ontology mapping in WSDL for buyTicket operation <part name= input1 type= tns:TravelDetails onto-concept= TravelOnto:TicketInformation >D( 2Z  2Df3 3 b0 $   $ 0M` Z _-* conforming to UDDI Version 3 spec [UDDI-v3]. 2.H $ 0޽h ?/@$$$$$$ ̙33  ia0((  (~ ( s *M   M  ( <LkM  7Service  ( <HM0 pP  ,KeyedReferenceGroup (SemanticGroupTModelKey),- $  ( <@M p  ,KeyedReferenceGroup (SemanticGroupTModelKey),- $ ( <ȝM  W CategoryBag   ^" ( 6GHwVIPFx^2 ( 6ZGHfIx LB  ( c $D @ LB  ( c $D@ @ ?  ( <HM Pp CTmodelKey:OperationalTModelKey, Value:TicketBooking, Name:buyTicket$D:  3H   *  ( <M0 P  <TmodelKey:InputTModelKey, Value:TravelOnto:TicketInformation== H  `  ( BtMfԔP P@  FTmodelKey:OutputTModelKey, Value: GeneralTradeOnto:ConfirmationMessage<G"    H LB ( c $Dpp LB ( c $D p LB ( c $D p LB ( c $D@ p ` LB ( c $D@ p p ( 0M : 2 W ( <M` PP  WTmodelKey:OperationalTModelKey, Value:TravelOnto:TicketCancellation, Name:cancelTicketXX Z   1 ( <M P CTmodelKey:InputTModelKey, Value: GeneralTradeOnto:TicketInformationDD H 1 ( <M P CTmodelKey:OutputTModel, Value: GeneralTradeOnto:ConfirmationMessageDD H  LB ( c $D@ p  ( HM ?"0 H>Output Message part-ontology mapping in WSDL for buyTicket operation <part name= output type= xsd:String onto-concept= GeneralTradeOnto:ConfirmationMessage >E( 2[  2Ef3 3P1 $ ( 0M` Z _-* conforming to UDDI Version 3 spec [UDDI-v3]. 2.H ( 0޽h ?/@(((((( ̙33  XP#\(  \ \ <m@ 7Service \ <KNp  )KeyedReferenceGroup (SemanticGroupTModel)&* f$ \ <`rN p@  )KeyedReferenceGroup (SemanticGroupTModel)&* f$ \ <,wN p  )KeyedReferenceGroup (SemanticGroupTModel)&* f$ \ <o  W CategoryBag   ^" \ 6GHwVIPF^2  \ 6ZGHfIx0 LB  \ c $D0 0 LB  \ c $D0 0 LB  \ c $D  O  \ <N P  GTmodelKey:OperationalTModel, Value:OperationConcept, Name:OperationName0H   f- H   \ <8N P  ,TmodelKey:InputTModel, Value:Input_Concept_W0-   f $   \ <N P  -TmodelKey:InputTModel, Value:Input_Concept1_Y0.   f $   \ <tN@   8& & . \ <TN Pp .TmodelKey:OutputTModel, Value:Output_Concept_X0/   f $   \ <N` PP /TmodelKey:OutputTModel, Value:Output_Concept1_Z00   f $   \ <hN 0 8& & .LB \ c $D` p LB \ c $D p LB \ c $D p LB \ c $D p LB \ c $D p l  p@  \p @,$D 02 \ <NPP KSame for all UDDI entries \ <N pp >OperationalTModel InputTModel OutputTModel SemanticGroupTModel?? 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SE= 9m'K H3gF<5P!V˭x]co/(3205n󥠽 f4VvhkָܹGr8^b hX[qV1 Ý[kYZp#Z@߰׵UiV"/ o< 8[%$$z:a aoҍJ-THJNnŔbcӚY|c Y׮uN ͓\wׂ$!;Ui^^^?'Aa8}tDlwGRlUÇ؛`A'୫3D>r 4 QS;4AV"\X^ދ"6{*rxT9&}s `#$QտU!:P G dxq(cѦRvWwrss/]ٳF|ٿ;Z= D}~3JrSD9qիGrKՏ\yyF660,\FFF?3aT-ϟї/[0PM9sHٞw3YM>w T>TX6ORa`6~r`ihhDTSnDghĵGCJ lIĶ{t'(-ZUTDNRE}}%z-d;FKGzڠ1vWFVV6Uݞ6L~RlMh{&yvgvOa-S{mCa?&lƩm޴GɃ@@=jա_-/"H6ۚSyLխ̞2He϶B]7|kJENA\u.@į{f‚VwXc ߾g`HrjmF]swކεk~)la+!:V~ 0xht`jzt$οiA_S_~)l& OICtqqikmG'>~ey߾}[<6}||.\56O57Ķyԥ}^15g 57Lr_KNOoCl77F,I&Mƶc7n%$@W}|QT9Or@Mwba-{ R  7 D00wy &@Kbk+)4Ym{q(6ES~j>pqto} _1D Oh+'0Q `h   $ 0<D:An Approach to Adding Semantics to Web Services StandardsamKaarthik SivashanmugameKaarthik Sivashanmugame218Microsoft PowerPointme@@(p@C}3@[=4 GPg  P('& &&#TNPPp2OMi & TNPP &&TNPP     'A x(xʦ """)))UUUMMMBBB999|PP3f3333f333ff3fffff3f3f̙f3333f3333333333f3333333f3f33ff3f3f3f3333f3333333f3̙33333f333ff3ffffff3f33f3ff3f3f3ffff3fffffffff3fffffff3f̙ffff3ff333f3ff33fff33f3ff̙3f3f3333f333ff3fffff̙̙3̙f̙̙̙3f̙3f3f3333f333ff3fffff3f3f̙3ffffffffff!___wwwaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa)0_0Q_C)_0_"0__)H0)>BEmD#D__-#D''#!<#-#'>I-"-' "--&TNPP & ՜.+,D՜.+,     On-screen Show LSDIS labShM)& -Times New Roman WingdingsVerdanaArialTimesDefault DesignVisio.Drawing.6,Adding Semantics to Web Services StandardsOutlineWeb Service Conceptual Stack1Web Service Conceptual Stack1BIG ChallengesMETEOR-S at LSDIS labSemantics at Different Layers(Semantics at Different Layers (contd..)(Semantics at Different Layers (contd..)Semantics in METEOR-S3Scope of Semantic Web with respect to Web ServicesSemantics for Web Services+Semantics for Web Service usage life cycle+Semantics for Web Service usage life cycle+Semantics for Web Service usage life cycle+Semantics for Web Service usage life cycle+Semantics for Web Service usage life cycle+Semantics for Web Service usage life cycle.METEOR-S components for Semantic Web Services;Search for services to book air ticket (using categories)*9Search for services to book air ticket (using keywords)*Semantic Discovery: Overview#Semantic Publication and Discovery'WSDL-S (WSDL with Semantic Annotation)Annotation Syntax*WSDL Annotation ExampleSemantics in UDDI-Semantic Categorization of Services in UDDI*-Semantic Categorization of Services in UDDI*-Semantic Categorization of Services in UDDI*-Semantic Categorization of Services in UDDI*-Semantic Categorization of Services in UDDI*Discovery using UDDI APIDiscovery using UDDI APISummary of Steps in Discovery Conclusions References Thank you  Fonts UsedDesign TemplateEmbedded OLE Servers Slide Titles& 8@ _PID_HLINKSAhttp://lsdis.cs.uga.edu/,http://lsdis.cs.uga.edu/proj/meteor/SWP.htmhttp://lsdis.cs.uga.edu/~amitAhttp://www-3.ibm.com/software/solutions/webservices/pdf/WSCA.pdf<http://lsdis.cs.uga.edu//METEORS/TravelServiceOntology.daml._O2PKaarthik SivashanmugamKaarthik Sivashanmugam  !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstvwxyz{|}~      !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~      !"#$%&'()*+,-./012345678:;<=>?@BCDEFGHORoot EntrydO)PicturesCurrent UserASummaryInformation(,RPowerPoint Document(us2DocumentSummaryInformation89