Design of a Semantic Service Bus for Networked Enterprises Peter Bednár, Karol Furdík, Gabriel Lukáč, Tomáš Sabol AMIF 09 : Ambient Intelligence Forum

Design of a Semantic Service Design of a Semantic Service Bus for Networked EnterprisesBus for Networked Enterprises

Peter Bednár, Karol Furdík, Gabriel Lukáč,Tomáš Sabol

AMIF 09 : Ambient Intelligence Forum 2009 Hradec Králové, Czech Republic, 16 - 17 September 2009

ContentsContents


SPIKE project & vision Semantic Service Bus Service discovery Message mediation Conclusions

MotivationMotivation


Approach to the semantic modelling and annotation of BPs as it was designed within the EU project SPIKE to support creation and maintenance of short-term business alliances and

networked enterprises

Related projects: STASIS (FP6-034980, www.stasis-project.net): eEconomy services,

semantic interoperability; TrustCom (FP6-001945, www.eu-trustcom.com): framework for Virtual

Organisations; OPUCE (FP6-034101, www.opuce.tid.es): service environment,

infrastructure for collaborative and dynamic loosely coupled services; SUPER (FP6-026850, www.ip-super.org): modular architecture for

semantic BPM. other projects and research groups focused on SWS, Security, Identity

Management and Privacy, Process-Oriented Knowledge Management, etc.

SPIKE visionSPIKE vision


Architecture - system componentsArchitecture - system components


Semantic Service BusSemantic Service Bus


Integration of services control communication in dynamic multi-agent environment or network of

devices

Current technologies – JBI binding components -> NMR -> service engines (BPEL, transformation)

Semantic Service Bus use semantic description of services for dynamic routing of messages and

message mediation

JBI Message Transformer and Message Router

Semantic service discoverySemantic service discovery


Semantic annotations of WSDL service description - sawsdl sawsdl:modelReference – maps various elements of WSDL and XSD to

ontology

Service type classifications references to controlled vocabulary (SKOS)

Input / Output types types are represented as the ontology concepts – type inference

Preconditions / Effects “late-time” resolving constrain message properties (WSDL logical expressions)

Example Thermometer, Location/Temparature, Temparature.units = Fahrenheit

Semantic mediationSemantic mediation


N:M mapping of messages 1:1 message transformation, message splitting / concatenation

Semantic “lifting” and “lowering” generic XSLT transformation of XML normalized messages to/from

semantic instances (sawsdl:lowering/liftingScheme)

Semantic mediation ASMs - state is set of instances transitions rules modify state (i.e. add/remove instances or change values

of properties), conditions in WSML logical expressions

Example if ?x memberOf Temperature and ?x[units hasValue Farenheits] and ?

x[value hasValue val1] then add(?y memberOf Temperature and ?y[value hasValue ?val2] and ?val1 = (?val2 – 32) * 5/9.0

Semantic mediationSemantic mediation


ConclusionsConclusions


Work done so far: Implementation of semantic service discovery Implementation of semantic routing JBI component Preliminary version of semantic mediator JBI component

Future work: Extending of framework for REST services 1st trial of the pilot applications, validation of the SPIKE platform on the

application cases (10-12/09)

Questions?Questions?


More info: http://www.spike-project.eu

Documents

Design of a Semantic Service Bus for Networked Enterprises Peter Bednár, Karol Furdík, Gabriel Lukáč, Tomáš Sabol AMIF 09 : Ambient Intelligence Forum