What is the difference between COGO in Survey Analyst and the advanced editing COGO functionality in ArcGIS Desktop?
The advanced editing tools in ArcGIS Desktop directly act on or create feature geometry. In addition to direct feature edits, feature geometry is subject to indirect change; this might be a result of topology validation, for example, in which new geometry vertices are created or existing ones are shifted during the validation process. Since there is no internal persistence of the procedures that created this feature geometry or persistence of the datum points (points of beginning), there is no recourse to rebuild this geometry from scratch in the spatially correct location. Even if the data has been known to be accurate, no formalized expression of spatial accuracy exists. COGO in Survey Analyst complements the flexibility of the advanced editing tools with the control of a structured coordinate management system. Survey Analyst COGO computations create survey points, and the geometry of these survey points is not affected by GIS edits. In addition, the procedures for defining direct e