One of the alternatives considered for the
implementation of email service was to use open source
package like the one available from
Jakarta.
However this package was still a distance away from
enterprise quality at the time of our development
and hence was discarded.
Another alternative that was considered early on the
design was based on the asynchronous implementation.
However, we felt that this implementation could wait
until a more definite need arose from project team
for such a service.
Listed below is the class diagram that was designed
for an asynchronous implementation.
