background image
DigiCULT
.
Info
28
END-USERS
Finally, the end-users directly access the
exhibitions that have been constructed by
the designers.
Acknowledgements
This work is sponsored by the National
Science Council of the Republic of China
(Taiwan), NSC-89-2750-P-260-001. This
work is also supported by INRIA, France.
resources in a `shopping cart'.
Thus, designers are involved in:
- building exhibitions by collecting
multimedia resources thoughtout the
network;
- selecting working servers;
- selecting multimedia resources
(`Shopping Cart Paradigm');
- manipulating the selected resources;
- `local' access to all multimedia
resources.
DESIGNERS
Designers are involved with all servers
in the network. They are obviously able
to access all resources stored on the
server that they have used to connect
into the network, but they can also access
any resource stored on any server
belonging to the network.
Given the list of available servers -
accessible through the local server - in
the network, together with their respect-
ive server profiles, the designer will select
those servers that will provide the proper
resources or the proper services (tools) he
wants to access or use.
Through an iterative process of requests
to the selected servers, the user will build
up a virtual subset (i.e. by way of poin-
ters to individual resources) upon which
he will actually work. The construction
of this virtual subset of resources is
achieved by means of the `shopping cart
paradigm', that is, while the designer
chooses all the multimedia resources he
wants to work with, he stores these
Figure 2. A designer builds an exhibition from multimedia resources located throughout the network.
Figure 3. End-users directly access an exhibition constructed by designers.