20. The PI platform of claim 19 , further comprising segmenting the type schema for extended type-level properties by domains to enable complete removal of domain-specific properties/attributes while maintaining validity of anonymized data entity events and relationships.
20. The PI platform of claim 19 , further comprising segmenting the type schema for extended type-level properties by domains to enable complete removal of domain-specific properties/attributes while maintaining validity of anonymized data entity events and relationships. 21. The PI platform of claim 20 , further comprising using the relational data store to store the data graphs as anonymized nodes, edges connecting the nodes, and an index for the nodes, and using the non-relational data store to store attributes of the notes, edges, and index nodes.