Maurizio Vincini UniMORE Researcher Università di Modena e Reggio Emilia

Università Università di Modena di Modena e Reggio Emiliae Reggio Emilia

;-) ;-) WINKWINK

Maurizio VinciniUniMORE Researcher

Università di Modena e Reggio Emilia

WINK System: Intelligent Integration Framework


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WINK ArchitectureWINK Architecture

WHALESWHALES

Web ApplicationWeb Application

Virtual Integrated CockpitVirtual Integrated Cockpit

Web ServerWeb ServerClient tierClient tier

Business Business logic tierlogic tier

WHALESWHALES MIKSMIKS

Data sourcesData sourcesShared DataShared DataData tierData tier

provider

provider

requestor

requestor

client service

client

service description

service

service description


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WINK Integration FrameworkWINK 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)

ReferencesI. 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


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Semantic Information Integration processSemantic Information Integration process

Localschemata

CommonThesaurus

Clusters

Global Virtual Viewwith

mapping tables

Artificial Intelligence reasoning (Description Logic)Cluster techniqueLexical relationships (WordNet)


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Common Thesaurus (Domain Ontology)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


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Semantic Information Integration processSemantic Information Integration process

Localschemata

CommonThesaurus

Clusters

Global Virtual Viewwith

mapping tables

Artificial Intelligence reasoning (Description Logic)Cluster techniqueLexical relationships (WordNet)


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Alenia test case GVVAlenia test case GVV

Mapping table


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Runtime: Query Processing ManagementRuntime: 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


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User Query:

Select Activity, Effort

from Activity

where Requirement=‘IC-5’ and Closed=‘Y’

GVVQuery ExampleQuery 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


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WINK Integration FrameworkWINK Integration FrameworkWINK Project Collaboration PortalWINK Project Collaboration Portal

WINK AgencyWINK Agency

provider

service WINK Integration FrameworkWINK Integration Framework

XML

HTTP

ServiceAgent Query

Agents

ASP

HTMLXSLrequestorclient Business

Logic

AIVDB+

WrapperAgent

Storage DB

WrapperAgent

WHALES

WrapperAgent

NCRDB

WrapperAgent

WrapperAgent

SAP

GVV


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Agent-based vs. Service-centric applicationsAgent-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


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DEMODEMO• Collaboration Portal:

– Home Page– Project Plans (from MS Project 2000)– Function and Reports

• Agent-based user-defined queries– Purchase Requests

Maurizio Vincini UniMORE Researcher Università di Modena e Reggio Emilia

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