This section describes various TAL customization use cases and the steps to follow when handling specific issues. Customization primarily involves modifying various TAL artifacts on the Publisher server.

A customization hook is an intercept point where you make it possible to modify the usual behavior of the TAL process, so both performance and security issues (such as tampering with the data, unintended side effects, and so forth) should be a concern. All custom approaches must be thoroughly examined for these issues.

Note that you can seriously affect TAL performance through customization, depending on how it is implemented.