1. Università di Modena e Reggio Emilia ;-)WINK Maurizio Vincini UniMORE Researcher Università di Modena e Reggio Emilia WINK System: Intelligent Integration Framework

2. Università di Modena e Reggio Emilia ;-)WINK WINK Architecture WHALES Web Application Virtual Integrated Cockpit Web Server Client tier Business logic tier WHALESMIKS Data sources Shared Data Data tier provider requestor clientservice client service description service description

3. Università di Modena e Reggio Emilia ;-)WINK WINK Integration Framework MIKS is an Agent mediator-based system for integrating multiple enterprises data sources into a single portal system. Semantic reconciliation of multiple heterogeneous ontologies Information fusion and query Agent support Mobile Agents support in order to improve system flexibility and query performance (based on JADE) References I. Benetti, D. Beneventano, S. Bergamaschi, F. Guerra, M. Vincini, An Information Integration Framework for E- Commerce. IEEE Intelligent Systems Magazine, January/February 2002. Distributed information stored in multiple, heterogeneous sources Global view Integration process

4. Università di Modena e Reggio Emilia ;-)WINK Semantic Information Integration process Local schemata Common Thesaurus Clusters Global Virtual View with mapping tables Artificial Intelligence reasoning (Description Logic) Cluster technique Lexical relationships (WordNet)

5. Università di Modena e Reggio Emilia ;-)WINK Common Thesaurus (Domain Ontology) Set of terminological relationships between classes and attributes names (terms) expresses both intra-schema and inter-schema knowledge Relationships added to Common Thesaurus: schema derived lexicon derived (WordNet) designer supplied inferred exploiting ODB-Tools capabilities

6. Università di Modena e Reggio Emilia ;-)WINK Semantic Information Integration process Local schemata Common Thesaurus Clusters Global Virtual View with mapping tables Artificial Intelligence reasoning (Description Logic) Cluster technique Lexical relationships (WordNet)

7. Università di Modena e Reggio Emilia ;-)WINK Alenia test case GVV Mapping table

8. Università di Modena e Reggio Emilia ;-)WINK Runtime: Query Processing Management –Discovering the relevant local sources –Query rewriting w.r.t. local sources –Independent local data retrieving –Unified data answers In MIKS (WINK Integration Framework): –OQL-like query over GVV –Query Reformulation/Optimization –Local sub-queries execution –Mediated query result obtained by object fusion

9. Università di Modena e Reggio Emilia ;-)WINK User Query: Select Activity, Effort from Activity where Requirement=IC-5 and Closed=Y GVV Query Example AIVDB: Q1 Select PROD_ID from VER_DOC_LINK where REQ_SEQ=IC-5 and REOPENING=Y WHALES: Q2 Select Activity, Effort, Test_ID from Work_Plan Fusion Select Activity, Effort from Q1, Q2 where Q1.PROD_ID= Q2.Test_ID

10. Università di Modena e Reggio Emilia ;-)WINK WINK Integration Framework WINK Project Collaboration Portal WINK Agency provider service WINK Integration Framework XML HTTP Service Agent Query Agents ASP HTML XSL requestor client Business Logic AIVDB+ Wrapper Agent Storage DB Wrapper Agent WHALES Wrapper Agent NCRDB Wrapper Agent Wrapper Agent SAP GVV

11. Università di Modena e Reggio Emilia ;-)WINK Agent-based vs. Service-centric applications Expected advantages: Agent Mobility –Distributed computation –Decreased communication costs –Increased information availability even during network failure Mediation: Intelligence and coordination –Semantic view of the physical query –Enables asynchronous processing –Warning on source data structure changes

12. Università di Modena e Reggio Emilia ;-)WINK DEMO Collaboration Portal: –Home Page –Project Plans (from MS Project 2000) –Function and Reports Agent-based user-defined queries –Purchase Requests