The original map documents are not homogeneous due to the graphical drafting process by second
survey class to the position mapping on photo map. This may cause some difficulties for graphical
accuracy when converting the map in to digital map and comparing to the field. Furthermore, the ground
control points are not used for transformation of the digital cadastral map so the map has to represent the
legal boundary point as the original map. It can be said that the digital cadastral map has never been more
accuracy or precision than the original map such that the graphical accuracy is not present in the digital
map. The registration processes are carried out on the same of the original map. The digital cadastral map
may be a map presenting the registered land parcel in the possible way to achieve the multi-purpose use.
About the digital cadastral map coordinate, choosing the reference points randomly and the examination
of the results of the transformation was executed using some package software. At least 8 points were
selected as reference tics, which were 4 grid points on the edge and any 4 trig point on anywhere for
checking RMSE. It is important to know the results of the transformation for all corner marks of the
parcel are not the correct georeference position. They are graphical coordinates of all points for any
further application. All points have not transformed georeference coordinate on the vectorized process
too. Creation of vector data base from the original map is only one feature for linking to registration
database.
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