Call centers provide an illustration of the use of portal systems as they
rely very heavily on the tools that such systems provide. Call centers need
to access information at high speed while solving the technical problems of
clients during a telephone conversation. These systems can provide mining
and browsing of key information in a visual way that allows users to understand
the implications of the information that they see and discover new facts.
In this sense, portals are more than virtual libraries as they integrate all the
tools needed to support the sharing of best practices and the functioning of
communities of practice.