# Tailoring Your Oracle Utilities Application Implementation

This document describes the naming conventions and processes that must be followed to ensure a successful upgrade of the Oracle Utilities application base product release-on-release. The implementation team responsible for tailoring the Oracle Utilities application to meet specific customer needs must follow this guide to preserve their changes and ensure successful upgrades. Only the changes described in this document are considered as permitted for the tailoring of the base product. Any changes that do not conform to these rules may be overridden by the install utility during a base product upgrade.

Some naming conventions used in this document:

- `$SPLEBASE` (for UNIX) and `%SPLEBASE%` (for Windows) is the generic Oracle Utilities environment directory name.
- `$SPLENVIRON` (for UNIX) and `%SPLEBASE%` (for Windows) is the generic Oracle Utilities environment name.
- `$SPLDB` (for UNIX) and `%SPLDB%` (for Windows) is the database type.

- Preserving Customer Changes

Parent topic: User Guide
Parent topic: Packaging Guide