The TatukGIS Editor was used to query appraisal data in vector parcel map layers and visualize the results, to view comparable homes within neighborhoods, and to export the query results to spreadsheets for further manipulation. For example, one of the map layers contained recent sales data which helps determine the fair market value of comparable homes in a neighborhood. Assessors used the Editor with aerial photograph change analysis to help determine and verify in the field which parcels were likely changed or had new construction or demolition since the previous flyover and to analyze building footprints and dimensions on parcels subject to reassessment. The Editor also helped assessors plan routes for field work.
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| Change Analysis viewed in the TatukGIS Editor. |
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| Building footprint measurements. |
Though some larger municipalities were already using GIS, for some smaller municipalities this was their first introduction to GIS. Most municipalities continue to use the TatukGIS Viewer in some capacity, such as by zoning officers to help visualize what is on the ground to aid in their zoning analysis. Some use the software to visualize CAD drawings of water or sewer lines, etc., potentially together with their GIS map layers. Furthermore, it is beneficial to the County to have more eyes on the GIS data. Because the municipalities are more familiar with their community, they are better able to spot and report errors, improving the accuracy of county data.
Erie County has successfully used the TatukGIS Editor and Viewer products to extend GIS technology to additional users and smaller municipalities - where software complexity, license costs, and user training requirements would otherwise be significant barriers.
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| Flood Zone data distributed to local municipalities as a map project in the TatukGIS Viewer. |
