> Module elements should not appear inside <source> and <target>. Good point. So the new second paragraph would be: ----- Each module is defined in a section of the XLIFF specification. The schemas of the XLIFF core or modules indicate where the elements and attributes of each module can be used. Modules can generally be placed in locations that are not extension points, with some restrictions, for example module elements are not allowed inside <source> or <target> elements. ----- That way it's explicitly not allowed in those elements, and the TC can also still decide other places may not be appropriate. -ys