Since the essential purpose of a portal is to facilitate the sharing of
high quality knowledge that has been captured electronically, it is important
that the portal content be relevant. The organization that makes use of a
particular portal must assess and evaluate the quality of the contribution
being submitted and assign meta-data according to its particular features. This
enables the creation of structures and categories. Once receipt of documents
and other artifacts is authorized, workflow systems deliver the contents to
involved or interested persons. This can be done via electronic mail, with
appropriate attachments