Date Added: Jun 2011
Reproducibility has been a cornerstone of the scientific method for hundreds of years. The range of sources from which data now originates, the diversity of the individual manipulations performed, and the complexity of the orchestrations of these operations all limit the reproducibility that a scientist can ensure solely by manually recording their actions. The authors use an architecture where aggregation, fusion, and composition policies define how provenance records can be automatically merged to facilitate the analysis and reproducibility of experiments. They show that the overhead of collecting and storing provenance metadata can vary dramatically depending on the policy used to integrate it.