a box with a dotted line which contains instructions
a text file with extension "ndx" it can be retrieved via ftp as well and may be used by user not on the WWW to order the relevant file via mail
Dummy text or graphic used to reserve a place for later insertion of the actual text or graphic.
In DocBook XSL, a defined but empty template. Such templates can be redefined in a customization layer, and they are called or applied automatically at the appropriate time.
A placeholder is a location (box) in a template where content (text or images) can be added.