When a parcel fabric is created, a geodatabase topology is also created. The parcel fabric topology includes a set of predefined topology rules that define the spatial relationships between parcel features.
The parcel fabric topology is validated using the predefined set of geodatabase topology rules. You can define additional topology rules and attribute rules to enforce data quality standards in your organization.
Parcel type behavior can also be defined by adding additional geodatabase topology rules and attribute rules. For example, certain parcel types, such as easement parcels, can be allowed to overlap, whereas other parcel types are not allowed to overlap. Parcel fabric data quality can be assessed by validating edits using the required and additional rules.
When a parcel fabric is created, parcel fabric feature classes are added to the parcel fabric topology and the required topology rules are applied.
Tip:Run the Disable Parcel Topology geoprocessing tool to remove topology rules from the parcel fabric feature classes. Run the Enable Parcel Topology geoprocessing tool to reenable the parcel fabric topology. When disabling the parcel topology, user-added rules are not disabled.
Add topology rules
The parcel fabric is validated using a required set of geodatabase topology rules. You can define additional topology rules to enforce data quality and model parcel type behavior. For example, you can allow some parcel types (such as right-of-ways) to overlap, but add the Must Not Overlap rule for other parcel types.
The parcel fabric uses the following required topology rules:
- Lines - Endpoint Must Be Covered By - Points
- Lines - Must Not Have Dangles
- Lines - Must Not Self-Overlap
- Lines - Must Not Self-Intersect
- Lines - Must Be Covered By Boundary Of - Polygons
- Polygon - Boundary Must Be Covered By - Lines
To add a new geodatabase topology rule, complete the following steps:
- Right-click the parcel fabric topology in the Catalog pane and click Properties.
- On the Topology Properties dialog box, click the Rules tab.
- Click Add, or click Click here to add a new rule in the last row of the grid to create an empty row.
- Build new rules or parcel fabric features using the drop-down menu in each column.