d48216ef_de_to_Sandboxes_vs__Data_Marts__Data_Mart
[Business Centric Attributes] Data Quality [Sandbox] Raw data is loaded, transformations, cleansing and enhancements are incorporated into discovery process [Data Mart] 
Very important – data is fully cleansed and transformed during load process
Data Warehousing and Big Data from an Oracle Perspective: DBAs Guide to Sandboxes vs. Data Marts
Data Mart