Wf4Ever project Wf4Ever was a research object funded by EU Framework 7 to investigate how scientific workflows and their data could be better preserved for reproducibility, reuse and resiliance against workflow decay. For instance, a particular computational analysis may require certain software preinstalled, and rely on web services and databases on the network. The workflow is also executed in a particular workflow engine, possibly using plugins or additional shims for data conversations etc. …
Tracking workflow execution with TavernaProv
Apache Taverna is a scientific workflow system for combining web services and local tools. Taverna records provenance of workflow runs, intermediate values and user interactions, both as an aid for debugging while designing the workflow, but also as a record for later reproducibility and comparison.
Taverna also records provenance of the evolution of the workflow definition (including a chain of wasDerivedFrom relations), attributions and annotations; for brevity we here focus on how Taverna’s workflow run provenance extends PROV and is embedded with Research Objects.…