We specify our intent in building a LATC configuration by providing a vote file for each precinct. As is the case for references in ConfigSystem, these are done by alias to provide an extra level of control to the user.
<LAT_INTENT>
<method>NORMAL</method>
<!-- One vote per precinct, called out by alias -->
<PREC_NAME-vote>Alias</PREC_NAME-vote>
</LAT_INTENT>
This is the same for LCI configurations, except that they add an extract precinct vote to specify the LCI instructions.