Data Storage and Editing . (Entity and attribute) DeMers Chapter 6 http://www.iupui.edu/~jeswilso/g438/lecture5/. Introduction. Any analysis performs must be based on good data, correctly organized and in the proper format.
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(Entity and attribute) DeMers Chapter 6
Pseudo node connects two and only two arcs
Pseudo node Not representing a serious errors
Acceptable dangle node
e.g. end of roads
too many labels
Check for digitization errors (overshoot, undershoot, unclosed polygon, missing labels, too many labels)
Store data more efficiently (eliminate data redundancy-normalization)
Make spatial analysis more faster