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e to 
supplement or update existing CD-ROMs 
with data supplied on e.g. floppy 
disk. 
It could also be relevant for the 
Survey to supply many of its other 
products on CD-ROM sometime in the 
future. Some of these products could 
be our place name register, the TO- 
maps, nautical charts, cadastral map 
and registers. 
Demonstration model 
The result of our first pilot project 
is a demonstration model which 
illustrates the possibilities offered 
by the concept of the IDM of Dennark. 
The model covers the area around the 
Great Belt and was shown for the first 
time at the 1991 annual meeting of the 
Association of Chartered Surveyors at 
Hotel Nyborg Strand. To illustrate 
the various possibilities, the model 
is composed in slightly different ways 
for the Nyborg and Korser sides, cf. 
figure 1. 
The data used have been coupled 
together in a common database system, 
so that it is possible to perform both 
geographical and administrative cross- 
searches. The user can also enter his 
own geographical and administrative 
information in the database, and this 
provides the basis for a user-adapted 
and coordinated information system. 
But it is one thing to demonstrate 
or illustrate the possibilities, and 
something entirely different to 
complete the system in a form which is 
suitable for actual practical use. 
Selection and search criteria must be 
improved and made more general, 
facilities concerning use, depiction 
and output must be improved and 
expanded, other database systems must 
also be usable, and finally we must 
continue to look for a total program 
system which is particularly suitable 
for handling such an integrated 
information system in everyday use. 
There was no revolution this time 
either. But that does not mean that 
the workday of the map user and map 
designer remains unchanged. We are 
all going to be affected by this to a 
greater or lesser extent. A 
prerequisite for the development and 
growth of the information society is 
a high and integrated level of 
625 
information. Within the mapping sector 
this means integration of all georelated 
information. It is this development 
that lies behind the foundation of the 
National Survey and Cadastre, but it 
Will be the concept of the IDM of 
Denmark that really "creates" the 
Survey. 
The present form and structure of 
the Survey have their roots in the 
previous products and product forms of 
the institutions. An internal structure 
which can promote the close data and 
system integration will be necessary. 
We must think, act and deal in digital 
information systems and their use to a 
greater extent, and maps to a lesser 
extent - be they in their graphical or 
digital form. We are therefore going to 
need organisations which, in cooperation 
with the users, will be capable of 
supporting the use of the systems and 
not only of producing the "goods". The 
idea behind the concept of providing 
information in the form of finished 
"packages" with pre-combined contents 
does, of course, require that a 
completely new sales and price structure 
is worked out as well as an organisation 
to handle all of this. 
But users and co-producers will not go 
altogether scot-free either. They too 
must undergo an organisational 
adaptation as a result of the changed 
work routine, and if it is a question of 
participating in part of production, 
e.g. making digital cadastral maps or 
supplying updating information in 
general, it will not only be necessary 
to meet certain system requirements but 
also to secure adaptation in relation to 
other data produced either by the 
National Survey or others. Users, 
manufacturers and other business 
partners must become thoroughly familiar 
with the possibilities and limitations 
of the new technology, so that a balance 
is achieved between expectations and 
realistic circumstances, and so that the 
perception of reality of all parties is 
reasonably concordant. 
The IDM of Denmark is, in its different 
variants and versions, designed to make 
up the future (universal) integrated and 
generally applicable digital planning 
tool. 
By virtue of its built-in "intelligence" 
in the shape of the mutually adapted 
elements, the grouping of logical