Here we would like to draw your attention to RSDSD transaction code in SAP. As we know it is being used in the SAP BW-WHM (Warehouse Management in BW) component which is coming under BW module (Business Warehouse). RSDSD is a transaction code used for DataSource Documentation in SAP.
It comes under the package for OLTP Metadata <-> BW Metadata Interface (RSAOLTP). When we execute this transaction code, RSDS_DOCU is the normal standard SAP program that is being executed in background. Transaction code RSDSD is included in the SAP component for SAP_BW.
Transaction RSDSD technical data table