SAP's Document Principle dictates that a single database is used. As a result, data redundancy is virtually eliminated, and there is one single version of the truth. Updates to the database occur real-time, with no batch processing and no downtime period. SAP provides full audit trails for each and every change to the data. Product upgrades and new software releases occur yearly.
Customers have the options to upgrade.
According to the presenter this decision is based loosely on the technology and customer base. Vendor Support and Services SAP's commitment to its customer service is described in SAP Services Map, which illustrates how SAP and Partner Services effectively and comprehensively support your ERP life-cycle. 7x24 problem handling support.