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PRIMARY DATA ACQUISITION : Influencing Factors APPENDIX IV 
(Aerial photography and Orientation Data/Auxiliary Data) 
Factors influencing production rates. 
A. Factors appertaining to the PRODUCT SPECIFICATION 
A 1 Size and shape of project area 
2 Photo scale 
3 Flying and navigation specification and tolerances 
4 Image quality specification and tolerances 
5 Orientation Data / Auxiliary Data specification and tolerances 
B. Factors appertaining to the PROCESS SPECIFICATION 
B 1 Type of survey aircraft 
2 Type of aerial survey camera 
3 Type of navigation system 
4 Flying height 
5 Flying pattern (inc. coastal and cross strips) 
6 Ground control and signalisation 
7 processing of aerial film (local facilities, method and equipment) 
8 Type of auxiliary equipment 
9 Method of processing Orientation Data / Auxiliary Data 
C/D ENVIRONMENTAL FACTORS: 
C. Factors appertaining to the PROJECT AREA 
C 1 Geographic position: absolute position of local base with respect 
to executing organizations home airfield 
2 Position of target area with respect to local base 
3 Meteorological and climatic conditions 
4 Topographic characteristics 
5 Communications situation 
6 Air traffic control situation 
7 Fuel situation 
8 Security situation 
9 Maintenance situation 
10 Local political/administrative situation 
D. Factors appertaining to the EXECUTING ORGANIZATION 
D 1 Skill, motivation and productivity of staff (inc. efficiency of 
management) 
2 Experience in operational conditions.