Leverage pre-existing foundational data models of SAP Business Suite entities for use in SAP HANA data mart scenarios:
Significantly reduces complexity of data modeling tasks in SAP HANA
Speeds up timelines for SAP HANA implementation projects
Provide semantically rich data from SAP Business Suite to SAP HANA:
? Ensures that data appropriately represents the state of business documents from ERP
? Application logic to give the data the appropriate contextual meaning is already built into many extractors
Simplicity / Low TCO:
? Re-uses existing proprietary extraction, transformation, and load mechanism built into SAP Business Suite systems over a simple http(s) connection to SAP HANA
? No additional server or application needed in system landscape
Change data capture (delta handling):
?Efficient data acquisition – only bring new or changed data into SAP HANA
?DXC provides a mechanism to properly handle data from all delta processing types
Overview of the DXC Rationale:
原文：http://www.cnblogs.com/grantliu/p/4089181.html