# Tailoring Web Files

Base product UI files are in the directory `$SPLEBASE/splapp/applications/root`. Implementers may develop their own UI files under the directory `$SPLEBASE/splapp/applications/root/cm`. No specific naming conventions are enforced under this directory.

The root directory may be deployed in war file format for runtime environment (`SPLApp.war`). Use provided utilities to incorporate your cm directory into the `SPLApp.war` file.

Parent topic: Preserving Customer Changes