Big data is the term applied to distributed data technologies that can handle the capture, storage, retrieval, and visualization of huge volumes of information.

While much of the e-commerce focus for these technologies is on their use in analytics, they are applicable to a myriad of high-scale commerce solutions.

Each of these open and closed source technologies is characterized by unique strengths and associated tradeoffs. This makes choosing the right technology for the problem one of the most consequential factors for success.

While much of the e-commerce focus for these technologies is on their use in analytics, they are applicable to a myriad of high-scale commerce solutions. Among these are inventory management, product recommendations, shopping cart persistence, social trend analysis, and micro segmentation.
Tacit Knowledge has created real-world solutions, implementing technologies such as Clustrix, Hadoop, Voldemort, Cassandra, and Memcache.

The BiggEye Project is an example of distributed data technologies. See Case Study