IN CONCLUSION 
From an engineering point of view 
At the disposal of the engineers within the MTC are very large 
digital computing facilities - our engineers would like to make 
more use of these facilities, The computers have never been 
able to effectively "read and digest" the graphical two dimensional 
plans produced in the conventional photogrammetric process. Our 
system produces a magnetic tape in the line function operation of 
getting from the ground to the final plan. This tape can be used 
as a digital representation of the terrain on the computer. The 
engineers look toward the time in the near future when most of 
their engineering activity will be performed in digital manner with 
the aid of the computer by using CRTs and other available auto- 
mated techniques. 
From a mapping point of view 
This MTC system, for the first time, offers the utopian possibility 
of using all large scale maps or plans to update all small scale 
maps. Only a computer manipulation is required between each 
scale of mapping. Maps now fit into an overall system - see 
Figure 10 - Hierarchy of Data Bases, 
The ""map' now can be considereu is a magnetic tape or as digits on a 
computer media. Inherent in this "'map' is the ability to provide the 
user with any map to the SCALE, CONTENT, DENSITY, SYMBOL, AREA, e