While big data systems offer flexibilities of scale at far more affordable prices then ever before, long-time data experts are also quick to point out that these newfangled big data systems are making use of techniques and processes that were once part of the data warehousing hype that once garnered IT’s attention. … Finally, there is the graph-oriented store class of NoSQL database. Data is manipulated in an object-oriented architecture, using graphs to map keys, values, and their relationships to each other, instead of just tables. Neo4j is an open source database in this class, as are HyperGraphDB and Bigdata.