The action of committing overrides to a Standard or Custom Population will create a

Local Population

. Local Populations have a file extension of

.ylp

.

When any of the SSA-NAME3 Clients (the Workbench, Population Override Manager or the Edit Rule Wizard), or an Application program invokes the SSA-NAME3 callable routine, passing it a System and Population name, the callable routine will look in the folder identified by the system name and load the population with that population name.

There is an order of precedence in the loading of this Population.

If a YLP (Local Population) is present, it will be loaded. If no YLP is present, but a YCP (Custom Population) is present, it will be loaded. Otherwise the YSP (Standard Population) with that name will be loaded.