domain objects and concepts (contents of \bt_p_msg).
The \bt_name
-<strong><em>trace IR</em></strong> (intermediate representation) modules
-contain everything you need to represent tracing domain concepts and
+<strong><em>trace IR</em></strong> (intermediate representation) API
+offers everything you need to represent tracing domain concepts and
objects so that many \bt_p_comp, written by different authors, can
exchange trace metadata and data.