“With SAP HANA, we have the possibility to optimize the application and use analytical methods that were not available before,” said Dr. Jan Mütter, head of IT Solutions at IT.NRW. Yet migrating to new systems is not the popular choice because the transfer of data from the old to the new system in particular pose risks. Data migration takes time to avoid data loss and other problems. There is also an inevitable downtime period that needs to be as short as possible.
“What we have accomplished is not commonplace in IT,” conceded Dr. Mütter. “Together with T-Systems and a standard SAP tool from SNP, we were able to meet the 16 month changeover time and not exceed the planned costs – so, on time and on budget.” Even the actual migration went smoothly over a single long weekend. For North Rhine-Westphalia’s State Office for Salaries and Benefits, the switch has also paid off in terms of costs. As Dr. Mütter explained: “The amortization period was just one year, since the considerably reduced maintenance costs in particular quickly offset the investment in the new hardware and software architecture.” Clients of the State Office have noticed no change from the switch to SAP HANA: Officials and pensioners received their payments as usual, and families, with a total of over 206,000 children, received their child benefits right on time.