It is common for Oracle Enterprise Taxation and Policy Management (ETPM) customers to implement in multiple phases.  This results in a need for incremental conversion, where part of the data in is production and they are now adding new data.  Some of the new data can be new persons, accounts and their children, but some may be new tax types for existing taxpayers. 

This document addresses a methodology for adding incremental data into ETPM.  It does not address every possible data scenario, but offers a path to achieving incremental conversion without the need for code changes.

 https://blogs.oracle.com/tax/resource/IncrementalConversion.pdf