Enterprise Data Warehouse Solution for DHS Modernization Project

Challenge:

  • To develop an enterprise wide business and reference data warehouse for the purpose of generating detail and summary reports
  • To source over 7 terabytes of data from the Datacom Legacy environment
  • To create relational data marts using Oracle and DB2 databases

Solution:

  • Designed the new relational Operational Data Store (ODS) and data marts using the Erwin COTS product
  • Identified the sources of data
  • Obtain data from the mainframe

Results:

  • Defined the source and targeted mapping business rules to obtain the data from the mainframe
  • Loaded data into the back-end systems that included: SAP R/3, SAP CRM, DB2 Data Warehouse, and EMC Documentum
  • Developed an enterprise wide business and reference data warehouse that generates detailed and summary reports