Copyright 2005 Digital Enterprise Research Institute. All rights reserved.

www.deri.org

Triple Space ComputingTSC

Reto Krummenacherreto.krummenacher@deri.org

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Why Triple Space Computing?

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Web site: http://tsc.deri.atStart date: March 2005End date: August 2007Duration: 30 months

Number of partners: 4

Number of WPs: 6Number of deliverables: 19

TSC Project

Thonhauser Data Engineering GmbH

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Technology Facts and Figures: Idea

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Technology Facts and Figures: Idea

Triple Space

publish

read

take

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Technology Facts and Figures: Architecture

• Coordination Infrastructure based on Super-Peer System• Server, Heavy Client, Light Client

• No Client-Server but Consumer-Producer System

TS Kernel

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TS Kernel

Technology Facts and Figures

Conceptual Model of Space and DataTS Kernal Architecture and Layering

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• RDF Triples: fundamental Semantic Web data model

• RDF Graph: a set of “manually” grouped triples

• Named Graph: a pair (URI u, RDF Graph g)

Technology Facts and Figures: Conceptual Models

• Triple Space: a virtual unit of the shared middleware

• Triple Space URI: the identifier of a Triple Space• Triple Space Domain, e.g. <ts://tsc.deri.at/space/>

http://tsc.deri.at/doap.rdf

sub obj

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Technology Facts and Figures: TS Kernel

write, read, take, query, update, subscribe, advertise based on - URIs - Templates (SPARQL, N3QL) - Named Graphs

setPermissions, createUser, deleteUser, createRole, deleteRole, addUserToRole based on - Named Graphs - Meta Graph

add, remove mediation rules based on - RDF Triples - URIs

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Technology Facts and Figures: Coordination

CORSO: Shared Object Space

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write(URI ts, Graph triples):URIread(URI ts, Template template):Graphtake(URI ts, URI graph):Graphsubscribe (URI ts, Template t, Callback c):URIadvertise (URI ts, Template t):URI…

Technology Facts and Figures: Interaction API

URIGraph (RDF Graph)TemplateCallback

Template: { ?s rdf:type d:Project ;

d:helper [foaf:name “Reto Krummenacher“] . }

Triple and Graph Pattern from SPARQL/N3QL

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Technology Facts and Figures: Interaction API

http://tsc.deri.at/doap.rdf

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• Triple Space Computing: new communication and coordination paradigm for machine-machine interaction.

Outlook and Conclusion

• TSC project: proof of concept through prototype implementation and use case analysis with Semantic Web service.

• Technology: re-arrangement and combination of established Web technology and Shared Object Space middleware.

• AS-IS: conceptual and architectural guidelines and implementation plans.

• TO-BE: prototype implementation and showcase

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Thank you.

contact:http://tsc.deri.at

reto.krummenacher@deri.org