We already know that SAP has launched the next generation data warehousing solution to leverage in-memory computing capability of SAP HANA, the new DW solution is SAP BW/4 HANA.
The transformation from traditional data warehousing to cutting edge BW/4 didn’t happen all of a sudden. There has been a journey of evolution from SAP BW 7.3 to BW/4 HANA.
It started in the year 2012 with SAP BW 7.3 which was powered by SAP HANA. It's fine-tuned with performance optimization thus it could run faster and more efficiently on the in-memory platform. Then, with the introduction of virtualization the next version SAP BW 7.4 was designed along with more simplification in 2013. After a small pause, with a big transformation SAP BW 7.5 was released in 2015 which was equipped to process big data along with better integration. Lastly, BW/4 HANA was launched in 2016 with simplified data structures and data flows, a revolutionized user experience, native SQL access, consolidated source systems, in-memory data processing, real time analytics, algorithm pushdown and big data processing. There was an SAP BW 7.5 edition for SAP HANA Add-on released in between to make the system transformation ready for SAP BW/4 HANA and it requires SAP BW 7.5 SP4 or higher.