Biblioteca digital... caracteristicas fundamentais.

"(...)propose some principles that we think perhaps
characterize something as a digital library rather than any other kind of
digital collection... These are:

1. A digital library is a managed collection of digital objects
2. The digital objects are created or collected according to principles of
collection development
3. The digital objects are made available in a cohesive manner, supported
by services necessary to allow users to retrieve and exploit the resources
just as they would any other library materials
4. The digital objects are treated as long-term stable resources and
appropriate processes are applied to them to ensure their quality and
survivability."
Simon Tanner Director, King's Digital Consultancy Services