Tooltips provide advisory or additional information about a particular component used in JSF-based applications. This advisory information can prove helpful before you enter valid input data or perform any operation, and also for displaying a validation message after the validation has failed on an input component.

Tooltips work as speech bubble tips and provide highly configurable features such as customized tooltips in the form of customized skinning and effects, global and global limited tooltips, shared, and mouse-tracking features.