At the hear of the Prism platform is a NoSql index replacing traditional relational databases. Solr is by far the most popular enterprise search engine with NoSQL features.
Solr (pronounced "solar") is an open source enterprise search platform from the Apache Lucene project. Its major features include full-text search, faceted search, dynamic clustering, database integration, and rich document indexing. Thanks to distributed search and index replication, Solr is also highly scalable.
The Prism platform is aggregating, washing and enriching unprecedented volume of data as fast as needed and stores ready-to-be-served into Solr.