a run-time, container-managed object that evaluates custom actions during the execution of a JSP page

A tag handler is an executable program or script that Conary runs to process changes involving dynamically tagged files.

a Java class that is somewhat similar to a servlet

a Java program that extends the class TagSupport

an instance of a Java class that implements either the Tag or BodyTag interface (depending on whether the tag uses a body between a start tag and an end tag) in the standard javax

an instance of a Java class that implements one of two standard Java interfaces, depending on whether the tag processes a body of statements (between a start tag and an end tag)