ists of design- 
uci specificat- 
iling circum- 
table 1 below: 
a 
b 
e 
d 
a bi 
c 
a c 
bc 
Bo 
abcd 
ab 
abe 
abe 
  
2.2. Principal project structures 
Any photogrammetric process consists of all or a number of various functional 
phases as shown in the flow diagram below 
  
EXISTING SURVEY 
FRAMEWORK 
| 
  
  
  
  
       
  
  
  
DETERMINATION OF T j ACQUISITION OF 
ADDITIONAL ren SIGNALIZATION AERIAL PHOTOGRAPHY 
GROUND CONTROL & AUXILIARY DATA 
  
  
  
  
| TETNOR CONTROL |, — | 
DETERMINATION E 
PHOTO-INTERPRETATION 
AND RESTITUTION 
el | 
  
  
  
  
  
  
  
  
  
$ + 
[FIELD IDENTIFICATION 
| 
  
  
  
  
  
[FIELD COMPLETION | D 
.,] CARTOGRAPHIC ; NUMERICAL DATA 
PROCESS ING PROCESSING 
REPRODUCTION : | 
PROCESS 
i 
Fig. 1 ; 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
This flow diagram already contains a number of elements of choice. Individual 
projects can therefore consist of various combinations of different functional 
phases. 
A few examples are given to illustrate this point. 
a) 
  
  
[AERIAL PHOTOGRAPHY | [ CFULL) GROUND CONTROL | 
| 
[STEREO RESTITUTION|® 
  
  
  
Y 
CARTOGRAPHY | 
Fig. 2 
A type of procedure still often used for smaller, high precision and 
large scale projects.