learning and using
re, which interface
on which software
3 developed which
ie. interface to run
Suns WABI (for
greement to port
here was a clear
and software used
, We are seeing the
lurred. In the past,
ere used to extract
| photogrammetric
hotos. These data
Sis Or to a separate
This is no longer
re will show that
ceted that combine
dedicated system.
ose from Erdas or
0 perform some
xluction (formerly
the other hand,
hh as Arc/Info or
ities and hardcopy
. Systems, such as
) the "integration"
The definition of
variable and the
y vector GIS data
nation of "image
ling, and powerful
ing" (Treadwell,
| EVOLVING
ited a survey of
the acquisition,
utput of digital
iddresses, most of
d Imaging, 1993).
d in areas such as
ng, many of their
immetric, remote
n GIS and remote
the integration of
ere published by
Ninne (Sader and
.
GEOINFORM
Cartography D
"d
co
Paper
interpolation
Field
Sample
parameters $
Earth Sciences °
Social Sciences
Model-
ling
Rirphoto Cn,
ATION DATA TYPES
digitizing
Remote Sensing
Photogrammetry
compilation
Terrain
Model
compilation
Surveying
GPS
Figure 1: Geoinformation Data Types (a
Efforts to integrate spatial information disciplines have
been primarily pushed by the advances of technologies. A
number of proposals, however, have been made by
Scientists and scientific committees to define an
integrated science or discipline rather than just looking
into the progress of technology. For example, the
Surveying program of the University of Laval in Québec,
Canada, developed a radically revised curriculum and
degree program in 'Geomatics' (Bédard, et al., 1988) The
term Geomatics was subsequently adopted by other
Canadian organizations and institutions concerned with
Surveying and mapping (Groot, 1989).
Similar efforts to integrate specialized spatial data
handling disciplines resulted in the formation of a
Department of Geoinformatics at the International
Institute for Aerospace Survey and Earth Sciences (ITC)
in Enschede, The Netherlands (Ehlers and Amer, 1991,
Groot, 1989). The Geoinformatics Department integrates
photogrammetry, cartography, remote sensing, GIS/LIS
and computer science (applied informatics). The ITC
approach did not radically change an existing program in
higher education but rather added a new and integrated
rrows indicate possible conversion strategies)
geoinformatics component. Their approach has been
primarily driven by the need to integrate multi-source
geodata within a common system (Figure 1).
It has to be noted, however, that the field of
geoinformatics is only an evolving one. Other
approaches have been initiated from disciplines such as
geography (Dollinger, 1992, Goodchild, 1992) or treat
geoinformatics as a subarea of surveying (Bill, 1992).
In this process, geo[infor]matics has been defined as
"...the science and technology dealing with the structure
and character of spatial information, its capture, its
classification and qualification, its storage, processing,
portrayal and dissemination, including the infrastructure
necessary to secure optimal use of this information”
(Groot, 1989); as "...field of scientific and technical
activities which, using a system approach, integrates all
the means used to acquire and manage spatially referenced
data as part of the process of producing and managing
spatially based information" (Gagnon and Coleman,
1990); and as "...the art, science or technology dealing
with the acquisition, storage, processing, production,
379