HisT/PLIER: A two-fold Provenance Approach for Grid-enabled Scientific Workflows using WS-VLAM

Large scale scientific applications are frequently modeled as a workflow that is executed under the control of a workflow management system. One crucial requirement is the validation of the generated results, e.g. The trace ability of the experiment execution path. The automated tracking and storage of provenance information during workflow execution could satisfy this requirement.. To collect provenance data using the grid-enabled scientific workflow management system WS-VLAM, experimentations were made with two different implementations of the provenance concepts. The first one, adopts the Open Provenance Model (OPM) using the Provenance Layer Infrastructure for e-Science Resources (PLIER). The second one is the history-tracing XML (HisT). This paper describes how these two provenance models are integrated into WS-VLAM.