7. The system of claim 6 , wherein said set of data node descriptions includes a plurality of tables, each table corresponding to a composite data node in said object process graph, said composite data node having an instance number attribute representing an identifier, and said table including columns, each column corresponding to a primitive data node in said object process graph.
7. The system of claim 6 , wherein said set of data node descriptions includes a plurality of tables, each table corresponding to a composite data node in said object process graph, said composite data node having an instance number attribute representing an identifier, and said table including columns, each column corresponding to a primitive data node in said object process graph. 9. The system of claim 7 , wherein said plurality of tables includes a first table and a second table, said first table having a foreign key column that references said second table, said first table corresponding to a first composite data node and said second table corresponding to a second composite data node, and said first composite data node having a reference node, said reference node being associated with said second composite data node.