It is important to understand the distinction between the following as these elements are essential to the internal structure of Arbil:
corpus node,
corpus session
corpus catalogue
IMDI is organized hierarchically meaning that any number of other corpus nodes can fall
under each corpus node . These nodes do not describe resources but are
meant to construct the corpus structure only. It is the session
nodes
which include
information about the actors, content, media file, project, source and written
resources.
A corpus catalogue, on the other hand, is a general
descriptive element of the whole corpus.