dfos = Data Flow Operations System, the common tool set for DFO . ... OCA: rules | ... start with the current DFOS_OPS OCA rule; the workflow for the implementation of the CALSELECTOR rules is provided by the dfos tool calselManager ; . ... add products for science data (used to generate vproducts for them) . ... Since new vproducts (from newly archived science raw data) are defined by the OCA rules, there is a vproduct creation (and deletion) process triggered upon OCA rules ingestion (and deletion). ...