PGS Overview Figure 1. shows a simplified PGS  system and data flow diagram. Backbone of the PGS request workflow is the multi- mission Data and Information Management System DIMS It provides User Information ... Delivery and the Product Library consisting of a catalogue for the product metadata and a robot archive to store the product data files . ... The PGS SAR data workflow from the received raw data to the generation of the level 0 products for long-term archival and theanbsp;...