An example from the group of “Images” is given on 
Fig. 3, where an old drawing of the Castle was 
scanned and inserted into the system. 
On Fig. 4 we have a graphical output in vector form, 
selected from the group of “Measurements”. It is a 
photogrammetric restitution of one of the three Gates 
of the Castle (excecuted by the Laboratory of 
Photogrammetry of NTU of Athens and completed a 
short time ago). 
An example of an output of combined information is 
shown on Fig. 5. It has been produced by the system 
using: 
-the hight information of the state map of a scale 
1:5000 
-the planimetry from an archaeological survey of the 
Castle, performed in 1931 at a scale 1:1000 and 
-the positions of the wall where interventions were 
made between 1200-1821 (information contained in 
/Theodorou et al 1990/). 
  
  
Fig. 4 
   
9. CONCLUSIONS 
New technology gives more efficient tools for 
studying, protecting and managing our monuments. 
Hardware and software demands for this application 
are becoming more common, easy to operate and 
affordable. 
The expected benefit from the use of these systems 
is great, especially for a country which has such a 
wealth of monuments but a low organisational level 
and thus has a tremendous task to undertake. The 
state has the means to introduce such systems. Thus 
the next important step is its decision to initiate and 
fuhd a complete system such as the one envisaged in 
this paper. 
  
NUrDUrA Di ÁcRO 
.o Conivro 
E FE. D