Sears claims to have one of the largest Hadoop clusters in retail and the company is betting heavily on open source.
Sherwell is conscious of technology costs given that affects Sears profit margins. Sears realized it was using old technology and upgrading would cut half of the costs.
Sears has a dynamic pricing system and that's where big data comes in. Sears has to compare its products to the pricing at other retailers.
Big data could also play a role in analyzing weather patterns and how they impact sales.
Sears is consolidating 10 data warehouses to two. One of those data warehouses will be entirely open source.
Sherwell is moving away from Oracle and Netezza software. Biggest move for Sears is moving its loyalty program off of Exadata to go open source. The savings is estimated to be "millions in fees per year."
Dell and HP storage is overpriced relative to Hadoop, said Sherwell.
A Teradata-based data warehouse will remain in Sears' plans because Hadoop doesn't join two sets of data together well.
The most relevant big data vendors will be the ones that are able to present data well.