. PLANNING OF PHOTOCRAMMETRIC PROJECTS.
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15; Introduction
4.1.Historical Review:
At the XI Congress of ISP at Lausanne, Comm. IV adopted a proposal by the author as
resolution No. 5, reading:
"The parametersinfluencing the accuracy and cost of different photogrammetric
subsystems should be studied, in order to establish the basic relations
required for planning and designing of photogrammetric projects".
In the invited paper: "System Analysis applied to the planning of photogrammetric
projects", presented to the Symposium of Comm. IV at Delft in September 1970, the
author proposed a new definition, reading:
"A general and thorough system analysis of the problem of planning photogrammetric
projects should be carried out. On the basis of such an analysis, the following
objectives should be achieved:
a) Development of a systematic and scientific method for the planning of
photogrammetric projects; and
b) Establishment and compilation of the information and data required for
such a systematic planning procedure in the form of objective cost-models,
accuracy models and qualitative information models of all alternative
process components available in photogrammetric technology".
"In the above-mentioned invited paper an attempt was made to present a system
analysis of the overall problem, dealing not only with the design of optimal
procedures to achieve given product specifications, but also with the problem of
establishing optimal product specifications, since it can be shown that both
problems are closely interrelated and certainly of equal importance.
The discussion following the presentation of the invited paper allows the following
conclusions:
In general there was agreement concerning the necessity to develop a more systematic
and objective approach to planning in our profession.
Although some speskers were afraid that the author's approach to the problem was
too abstract, it was concluded that this approach might yet lead to a more orderly
thinking into the cost processes involved in photogrammetric work.
° The main part of the discussion centered of course around.the difficulties to
establish the required cost and performance models and to achieve a suitable
quantification of all influencing factors and parameters involved.
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