On 23 April 2014 12:05, Muhammad Usama <[email protected]> wrote: > If there is no single system for many workflow systems. Is there anything > like that for any workflow system at least? > Is there any forum where I can ask people working on workflow systems in > general?
Workflow systems are a bit varied in how their execution logic and thus also in their execution provenance. In order to understand the precise workflow provenance you would need to also understand the workflow definition and the workflow engine - for instance the Taverna workflow system does implicit looping when you connect an output of a list to a processor taking single items - so in the provenance it might look like those individual values of the list "come out of nowhere", and that the parent list is also going nowhere. Within the Wf4Ever project we defined a common ontology for workflow provenance: http://wf4ever.github.io/ro/#wfprov which has been adopted by Taverna and the WINGS workflow system. For example of its output from Taverna, see: https://github.com/myGrid/taverna-prov/#workflow-run-provenance We have a couple of experimental rendering systems (outside the TAverna Workbench) of wfprov workflow executions, one for myExperiment. In general I would say it is tricky to do it right. For instance a Taverna Workflow might easily produce many thousands of intermediate values - just presenting them as a flat list of files is not usually helpful. DataOne had a working group on workflow provenance models and queries: https://www.dataone.org/working_groups/scientific-workflows-and-provenance-working-group but this was a closed group and I do not believe they are active any more. In the SHIWA community we have a workflow provenance mailing list: http://www.erflow.eu/wiki/-/wiki/Private/Workflow+Provenance https://groups.google.com/forum/#!forum/prov4wfms If you (or others!) would like to join, mention my name when signing up. -- Stian Soiland-Reyes, myGrid team School of Computer Science The University of Manchester http://soiland-reyes.com/stian/work/ http://orcid.org/0000-0001-9842-9718 ------------------------------------------------------------------------------ Is your legacy SCM system holding you back? Join Perforce May 7 to find out: • 3 signs your SCM is hindering your productivity • Requirements for releasing software faster • Expert tips and advice for migrating your SCM now http://p.sf.net/sfu/perforce _______________________________________________ taverna-users mailing list [email protected] [email protected] Web site: http://www.taverna.org.uk Mailing lists: http://www.taverna.org.uk/about/contact-us/
