ASCII Files 
- self documenting files. 
- ease of interface by user with outputs from the Kern 
software. 
Help 
- at the touch of a key, an explanation is given of the 
input parameters which are expected or the commands 
and options which are available. 
Libraries 
- libraries of subroutines have been developed to aid 
the development of software by both Kern and the 
customers. 
- libraries for customers are written in both PASCAL and 
FORTRAN. 
-.internal libraries are used by Kern to provide 
building blocks for rapid software development. 
3. Model Orientation 
The DSR may be used to orient different types of imagery e.g. 
perspective, SPOT, panoramic. After orientation, the various 
other application software packages may be used for data 
collection, e.g. DTM collection, MAPS 200 On-line Compilation. 
3.1 DSR1B Operating System 
The DSR1B Operating System is a series of programs which allow 
the operator to perform the basic functions of the DSR 
analytical plotter such as instrument calibration and setting 
up of models : 
- Plate Processor - controls stage movement 
according to image geometry. 
- Instrument Calibration - using a calibrated grid 
plate. 
- Camera Management - for editing or creating a 
file of camera data e.g. 
focal length, fiducial 
coordinates etc. 
- Coordinate Management - for editing or creating a 
file of ground control 
points. 
- Project Definition - defining project parameters 
e.g project identification, 
terrain and flying heights 
for earth curvature and 
refraction corrections. 
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