San Diego City & County Streamline Data Maintenance & Sharing

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To optimize efforts and resources, the City of San Diego and the County of San Diego in California share a GIS landbase and data warehouse, which are managed and maintained by the San Diego Geographic Information Source (SanGIS). This arrangement, called a Joint Powers Authority (JPA), allows the two separate government organizations to combine resources to meet common objectives—in this case, sharing data and providing up-to-date information to the public.

For SanGIS, its mission is to maintain and promote the use of GIS data for landbase maintenance, data warehouse management, and public access to GIS data. To achieve those goals, SanGIS partnered with Quartic Solutions to implement the Esri Geospatial Cloud by setting up ArcGIS Enterprise on Amazon Web Services (AWS).

SanGIS also uses the Esri Geospatial Cloud to create and maintain San Diego County Assessor map books. Previously, two different organizations did data entry: the County of San Diego Assessor’s Office entered parcel data in CAD first, and then SanGIS reentered that data into its GIS and added lot data. This resulted in data duplicates. But with ArcGIS Enterprise on AWS, each organization now enters its data directly into the GIS, eliminating duplicate entries and enabling the data to be published much faster than in the past. The operating costs associated with creating and maintaining the map books have been reduced as well.

Centralizing these workflows required moving the maintenance of a number of mapping activities from CAD to ArcGIS. To accomplish this, Quartic Solutions created custom GIS edit, report, and publication tools to mimic the CAD system’s functionality, as well as its product outputs. Now, the City of San Diego and the County of San Diego can reliably send data back and forth, which also saves time. In the future, the county assessor plans to expand this system to include other types of updates for the landbase. This versatility has allowed SanGIS to use a single solution to meet two goals: data sharing and collaborative database maintenance.

County of San Diego senior analyst Brenda Maldonado uses the custom GIS tools that Quartic Solutions developed to maintain the assessor’s office’s map books

County of San Diego senior analyst Brenda Maldonado uses the custom GIS tools that Quartic Solutions developed to maintain the assessor's office's map books.

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