Connecting Scientific Data to Scientific Experiments with Provenance

As scientific workflows and the data they operate on, grow in size and complexity, the task of defining how those workflows should execute (which resources to use, where the resources must be in readiness for processing etc.) becomes proportionally more difficult. While “workflow compilers”, such as Pegasus, reduce this burden, a further problem arises: since specifying details of execution is now automatic, a workflow's results are harder to interpret, as they are partly due to specifics of execution. By automating steps between the experiment design and its results, we lose the connection between them, hindering interpretation of results. To reconnect the scientific data with the original experiment, we argue that scientists should have access to the full provenance of their data, including not only parameters, inputs and intermediary t also the abstract experiment, refined into a concrete execution by the “workflow compiler”. In this paper, we describe preliminary work...

• Type: Conference
• Year: 2007
• Where: ESCIENCE
• Authors: Simon Miles, Ewa Deelman, Paul T. Groth, Karan Vahi, Gaurang Mehta, Luc Moreau
• Keywords: Distributed And Parallel Computing, ESCIENCE 2007, Scientific Workflows, Workflow, Workflow Compiler