3. GIS consulting-tax parcel migration

Geometry checks are performed to ensure the polygons and lines meet the standards required for the parcel fabric. Data Reviewer will be used to facilitate checking the staging data prior to loading into a parcel fabric. The staging and final geodatabase spatial references will be compared for consistency. If they are not the same, issues could arise with the loading step. It is best practice to make the two environments the same prior to loading any data. In addition to the spatial reference component, the staging and final geodatabase environments will be reviewed for schema consistency including comparing the fields for type, name, character length and domain use. Any fields in the staging data that are deemed necessary will be created in the final geodatabase schema. Any fields in the final geodatabase parcel fabric that need to be populated with existing data will be added to the staging environment and calculated or otherwise populated prior to loading the data. Once the staging data is completely prepared, an inventory of the data is taken to ensure the same number of polygons that are in the staging environment are loaded into the parcel fabric. • Load all data into the Parcel Fabric Since the number of polygons to be migrated is estimated to be less than 30,000 for any single polygon feature class, the Load a Topology to a Parcel Fabric tool can be utilized. This tool will be used to identify the target parcel fabric in which to load the data, to identify which feature class to load, and to set some default values for the features as they are being loaded. • Perform post-load data checks and quality assurance measures Once the data has successfully loaded into the Parcel fabric, a number of follow up data checks will be performed to ensure a quality parcel fabric result. These checks include utilizing both native ArcGIS tools as well as employing the Data Reviewer extension. Native ArcGIS tools including the Check Fabric tool will be used to determine if the fabric loaded with any features that could have minor flaws. Many of the issues reported are items that can easily be corrected or improved with inherent parcel fabric tools. The Spatial Index for each parcel fabric class may be recalculated to improve performance. Data Reviewer checks will be run to check the geometry of each parcel fabric class as a whole as well as specific queries within each class based on the Parcel batch job included with Data Reviewer for Tax Parcel Editing. The results will be reviewed and corrective actions will be suggested. 7