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ER is a flexible, ongoing project
committed to meeting the challenges
associated with making the content of the
Archives available on the Web, eradicating
the digital divide, and creating access for
all to heritage over the Internet.
Sport. With an integrated online system,
the Archives administration can monitor
its resources and develop short- and
long-term management plans.
ER was developed with the Java 2
Platform, Enterprise Edition (J2EE:, the standard
for developing multi-tier enterprise
applications. The J2EE architecture defi-
nes a client tier, a middle tier (consisting
of one or more sub-tiers) and a backend
tier providing services of existing infor-
mation systems, meaning that various
parts of an application can run on diffe-
rent devices. J2EE simplifies enterprise
applications by basing them on standardi-
sed, modular components, by providing a
complete set of services to those compo-
nents and by handling many details of
application behaviour automatically.
Thus, AER is built on a robust and flexi-
ble platform which allows choice among
different products and vendors.
he main components of AER archi-
tecture are:
· BEA WebLogic
Application Server.
· Documentum
Enterprise Content
· Oracle
Database management system.
t present, all of these companies are
market leaders and have been cho-
sen to ensure optimum performance.
However, AER architecture can be
implemented using other solutions, for
instance Open Source products, as long
as they are J2EE compliant. AER imple-
ments XML technology to enable infor-
mation exchange and interoperability
with other applications, and AER com-
ponents are also compatible with Dublin
Core interoperable metadata standards.
ER is closely following the evolu-
tion of new concepts such as the
Semantic Web with a view to incorpora-
ting them gradually into its platform. It
has been developed in synergy with
other major European projects such as
the Lund Plan offering an advanced (in
terms of quantity and quality) digitisation
Letter from Christopher Columbus to Queen Isabel the Catholic, defending the exploration of the New World.Year 1501. General Archive of Simancas:
State, 1st-2nd. p.165.
"Three Small Children from Madrid, one with a slice of bread in his hand", by Kati Horna.Year 1937. General Archive of the Spanish Civil War:
Photographic collections, Kati Horna, 213
© Minister
io de Educación,
Cultura y Depor
te de España,
© Minister
io de Educación,
Cultura y Depor
te de España,