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Splice of Data Integration and Aggregration

From: Dirk-Willem van Gulik <dirkx@webweaving.org>
Date: Fri, 17 Sep 2004 08:54:44 -0700 (PDT)
To: public-rdf-dawg@w3.org
Message-ID: <20040917085230.C60625@skutsje.san.webweaving.org>

4.2 data integration and aggregation

RDF can be used for data integration and aggregation. RDF repositories
are built by merging RDF triples from one or more locations. Such as
other RDF repositories or from non-RDF sources converted to RDF.

Such an aggregations can be real or virtual.

4.2.1 Querying Multiple Sources

It must be possible for the query language and protocol to allow an
RDF repository to expose the source from which that query server
collected a triple or subgraph.

Note: If may be possible for a triple to actually be listed
      at multiple sources.

4.2.2. Querying the Origins of Statements

It should be possible for a query to specify which sources, as defined in
4.2.1 the query is executed against.

If more than one RDF graph is specified, the result is as if the query
had been executed against the merge of the specified RDF graphs.

4.2.3 Querying Multiple Repositories

It should be possible for a query engine to query multiple repositories.
Received on Friday, 17 September 2004 16:07:14 UTC

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