DATA ACQUISITION 
(INPUT) oooooooooo UTILIZING 
\ 
The Object 
+ 
Sensor (camera or other) 
+ 
Mensural Instrument (comparator 
or other, analogic or analytic) 
+ 
Control Data (object points or 
other, from various sources) 
DATA PROCESSING 
(and Analysis) ooooooooooo involving 
Data (Parametric, Dimensional) 
+ 
Computer (Analog, Digital) 
DATA PRESENTATION 
(and Display: OUTPUT) ooooo generating 
Graphical presentation (on CRT 
screen, paper, film, etc.) 
and/or 
Numerical (digital) data 
UTILIZING 
Plotting or Display devices 
Extended OUTPUT ooooooooooo giving 
DERIVED PARAMETERS 
Mensural (perimeter, area, 
height, volume, etc.) 
Change (volume change, velo 
city, etc.) 
Statistical (precision, area 
distribution, etc.) 
Others 
Fig. 6.1 : General working system in analytical photogrammetry