The document discusses various options for integrating Hadoop with an existing enterprise data warehouse (EDW). It describes 7 options: 1) Teradata Unified Data Architecture, 2) using an existing EDW with a new Apache Hadoop cluster, 3) using an existing EDW with a new Cloudera Hadoop cluster, 4) using an existing EDW with a new Hortonworks Hadoop cluster, 5) IBM PureData, 6) Oracle Big Data Appliance, and 7) SAP HANA for Hadoop integration. Each option involves using the existing EDW for structured data and Hadoop for unstructured/semi-structured data, with analytics capabilities available across both platforms.