The key features of SAP HANA can be summarised as follows:

• The in-memory technology lets users explore and analyse all transactional and analytical data in real time from virtually any data source.
• Source-agnostic data access & integration services allow accessing and indexing external data from across the entire organisation and adding them to existing analytical models. 
• Real-time analytical processing can be performed to analyse business operations in real-time using huge volumes of detailed information while business is happening.
• Data can be aggregated from many applications and data sources without perturbing in any way the on-going business transactions.
• Views of business information can be persisted in a Persistent Data Repository, and reconstituted in case of a crash.
• Real-time Replication Service can be used to access and replicate data from SAP ERP.
• Tight integration with SAP Business Objects BI solutions for insight and analytics.
• SQL and MDX interfaces for third- party application access.
• Unified information modelling and design environment. The great advantage here is that all data models are purely virtual, and calculate results based on the underlying detailed operational data. 
• Simplification of existing models, of modelling and re-modelling.
• Reduced costs through simplifications in hardware, maintenance and testing.
• Simplified Operations and Monitoring with the integration of basic HANA administration capabilities with the BW Admin Cockpit.
• Unified information modelling and design environment. The great advantage here is that all data models are purely virtual, and calculate results based on the underlying detailed operational data. 
• Simplification of existing models, of modelling and re-modelling.
• Reduced costs through simplifications in hardware, maintenance and testing.
• Simplified Operations and Monitoring with the integration of basic HANA administration capabilities with the BW Admin Cockpit.