{"ref":"readme","ref_type":"branch","master_branch":"uvcdat-master","description":"VisTrails is an open-source data analysis and visualization tool. It provides a comprehensive provenance infrastructure that maintains detailed history information about the steps followed and data derived in the course of an exploratory task: VisTrails maintains provenance of data products, of the computational processes that derive these products and their executions. ","pusher_type":"user"}