4. Conclusions
The followings are the main objectives of the present work:
• A GIS/WEB prototype design for intemet/intranet data
sharing conceived from a methodological point of view,
suitable also for other geographic areas and different
types of data.
• Set up of access control measures giving, in the
meantime, the application its promotional aspect.
• Implementation of database dynamic access mechanism,
that is the dynamic generation of data (both graphics and
textual) fruition shells.
• Design of a graphic “user friendly” interface, able to
drive users to an easy navigation.
On the basis of these considerations, we retain the goals
gained, taking particular attention to dynamic generation of
activeCGM pages (graphic pages), useful to allow users to
build their own navigation paths.
In addition, the usage of the Internet Database Connector (an
ISAPI application) allows the definition of SQL (Structured
Query Language) parametric queries, suitable to extract from
the database all the textual attributes defined by users
themselves.
GeoMedia Web Map software optimise internet graphic data
sharing management. ActiveCGM maps format, being
extremely compressed, reduces client browser loading time,
and it is well integrated with HTML documents. A1 the
operations performed in the site have been associated to
graphic interfaces, built by means of simply command,
buttons and predefined forms aiding the navigation.
Data protection have been ensured by:
1. Displayable maps can be pasted in the notebook, loosing
the original cartographic precision. Their usage is only
valuable from the information point of view; where user
needs those data has to ask directly to the owner.
2. Access control is performed at the beginning of the
application (user name requested at the login) avoiding
not authorised users to enter the site
5. References
INTERGRAPH CORPORATION (1997) - GeoMedia Web
Map Administrator, Getting Started - Huntsville Alabama
(USA).
MICROSOFT CORPORATION (1996) - Guido in linea dei
Servizi Microsoft Peer Web -
