On Mon, Aug 3, 2009 at 09:59, Jerzy Orlowski<[email protected]> wrote:


> I mean is there or will there be a way of storing/browsing the history
> of executed workflows and their input/output. I mean queries like "What
> was the most most frequent processor that was processing the output o
> processor X?"

Ah - you mean querying the provenance database. Perhaps Paolo can fill
me in, but there's an API to the provenance database which keeps track
of these things. It's also possible to export the provenance as Open
Provenance Model data (OPM), which is RDF and which I believe should
be possible to query like you suggest - although 'most frequent' might
not be a typical SparQL query I guess something could be worked out
:-)


-- 
Stian Soiland-Reyes, myGrid team
School of Computer Science
The University of Manchester

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