Should that instead say something like "The Trigger module provides a GUI for associating actions with triggers"?
The first sentence above is more a description of Drupal's hook system, which does not depend on the trigger module. You can disable the trigger module, and Drupal will still take "a particular action when a trigger occurs."
I have extended the user with custom fields in order to present information such as cv, place of work and so on, and have built custom views to present the information. But it seems the built in search function only find users when typing their user names and returns only the mail adress.
I would like it to search all the fields associated with the user but cannot find a way.