Provenance in Taverna

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Provenance in Taverna
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Provenance

• Overview of Provenance.
• Why its important in the context
• of Taverna Workflows.
• Demo of the (Under Development) Provenance
  Browser.
• Coming Soon to the Browser.
• Your Feedback/Ideas!?

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What is Provenance Data?

• Meta data about the origin of a resource
  (workflow , service, data , experiment hypothesis
  etc.) and the process of how a resource was
  generated.
• The Who? , What? , When? ,Where? and Why? about
  resources.
• Recorded as the workflow is built run.

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Provenance Pyramid
Stored in Triples ltSubject , Predicate ,
Objectgt 4 Levels/Views of provenance
Organization ltExperimenter is_part_of project
gt Data ltProcess has_input Data
filegt Process ltworkflow
runs_processprocessgt
Knowledge Inferred from Data , Process and
Organisation level provenance and applying
domain knowledge. ltnucleotide sequence
has_similar sequences_to collection of
sequencesgt
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Provenance in Taverna

• Currently
• Targeted at recording mechanistic experiment
  process
• No support for using / browsing / querying
• provenance

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Provenance in Taverna

• Currently
• Targeted at recording mechanistic experiment
  process.
• No support for using / browsing / querying
  provenance

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Provenance in Taverna

• Advantages to Using Provenance in Taverna
• Retrieve results for a previously run workflow
  instantly rather than re-run.
• - large workflow may take hours!
• Can then Navigate Validate Results
• Provides a backup mechanism - workflows can be
  reconstructed from provenance data.

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Provenance in Taverna

• Cross-Referencing Provenance resources across
  experiments
• Where the power of provenance becomes apparent
• Share, discover, re-use resources
• - Compare different runs of the same
  workflow - infer any interesting
  similarities/differences
• - Discover workflows that contain a similar
  sequence to your
• result

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Provenance Browser

• Under construction!
• Provides quick access to provenance data for all
  your Workflow Runs
• Currently the browser only supports Data /
  Process / Organisation centric functionality
• Evolving daily , soon to provide an array of
  functionality!

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Provenance Browser

• Coming Soon
• Workflow view on the provenance data.
• Ability to compare the runs of a Workflow.
• Filters failed workflow runs , workflow runs
  with changed data
• Modify the Inputs and re-call the workflow
• In General Allow users to Intuitively
  navigate and query the web of knowledge that
  provenance provides.
• Your Opinions
• email me gamblem3_at_cs.man.ac.uk