High Resolution 1:10,000 scale Mapping Strategy of Multi ... - NDMA

5 Performance
resolution obtained.
High resolution is not always necessary, and the tradeoff
between what is gained in terms of analytical capacity and
what is lost in terms of consumption of computer's
memory and input time must be considered.
The type of graphic adaptor, the size of computer's
memory, and the user's preference as to whether a full or
partitioned screen should be used, are determining factors
in this respect.
Finally, the design of the database should be tested for
performance.
Following a pilot test, it is not uncommon to obtain a
sizable set of database design rectification.
Guidelines are usually not only directed at the spatial
accuracy of data and layer design, but also at the
identification of possible obstacles for final system
implementation, and the development of procedures or a
methodology for performing tasks under normal
operational conditions.
Table App 1.3: Design of Data files
App 8