SPARQLing UNICORE

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SPARQLing UNICORE
R. Menday, A. Streit Research Centre Jülich,
Germany r.menday_at_fz-juelich.de
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Distributed European Infrastructure for
Supercomputing Applications
DEISA based JRA7 - Joint
Research Activity 7 New ways to access the
Grid infrastructure
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Roctopus ! A high-level API for programming
Grids One interface - multiple implementations
(targets UNICORE 5 and UNICORE 6 and ) Model
based on resources Site, Storage, Task, File,
etc (Uses a URI scheme for naming these
resources) Basis for DESHL command line
environment Use it to write concise Grid client
applications
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Web 1.0 Web 2.0 Web 3.0
GoggleMaps
RDF/A
AJAX
Gmail
GData
GRDDL
Semantic Web
REST
Atom
SPARQL
mashups
Tabulator
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Web/Grid Services ? Not really that much to do
with the Web SOAP almost always bound to
HTTP So, why not just use HTTP ? Semantic
Web/Grid ? Surely good stuff, but more semantics
than web ?
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How to get the Grid into the Web world ?
Something other than JSR 168 Build everything
in the web-style (very appealing, but lots of
commitment to WS ) So
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HTTP Façade over a
Grid Style it as you want ! (HTML AJAX,
Flash, thicker clients, etc)
Model Users Grid Resources
View Representations as RDF (or XHTML with embedded RDF)
Controller RESTfull HTTP
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Resources making up the Grid as HTTP URIs
Follow REST Use RDF to enrich links between
the resources Embed RDF into normal pages using
RDF/A (single page for both human and machine
consumers) Syndicate the content using
Atom/RSS (jobs status, sites on/off line,
etc) The web as a single database (see the
Tabulator, http//www.w3.org/2005/ajar/tab) Query
able using SPARQL
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Mashup
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Going Further using the web style for the
actual middleware ?