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EAS:San Francisco’s
Enterprise Addressing System
COITApril 14, 2011
Enterprise Addressing System
Enterprise Addressing System
Committee on Information Technology
Department of Technology
San Francisco Enterprise GIS
Program
COIT Funded Initiative (MAD)
Department of Building Inspection
San Francisco Enterprise GIS
Program
Spatial Data for the Enterprise(Imagery, Demographic Data)
Enterprise License Agreements(Esri, Pictometry)
Enterprise Platform for Services(VMware, ArcGIS Server)
Enterprise Addressing System
Why does the City need EAS?
• Multiple address databases used by City Departments
• Varying needs and uses • Varying formats• Varying quality• Addresses are critical
Current ad hoc situation leads to inefficiencies, confusion, lost time and effort.
EAS is …
• Focused solely on address management• Shared source of address information • Available across departments• Easy to use• To be integrated with DBI’s Address Verification
System (AVS) and permitting system
An address in San Franciscoper Federal, State Law and City Charter
Assessor/Recorder
Public Works
Assessor ParcelNumber (APN)
Street Name
Department ofBuilding Inspection
Address Number
634 Ashbury Street(APN: 1234 001)
Demo
eas.sfgov.org
Schedule
• EAS 1.0 (eas.sfgov.org)• Production environment on VMWare• Daily data loads• Open Source Project (code.google.com/p/eas)
• EAS 1.1• Integration with DBI systems• MOU/SLA between DT and DBI
• EAS 1.2 and beyond• Integration with other departments• Leverage development work of other municipalities• Add imagery, building footprints
Questions?
Supplemental Slides are below
Extract - Transform – Load Basemap Changes
ETL
app_db
map_db
Public Works
parcelsstreets
Assessor
parcel attributes
Enterprise GIS
transform
DBI ↔ EAS Integration
Web Services
EASlook up
change notification
DBI
Vmware Infrastructure
Data Model
Feature: Simple, Adequate Data Model
– parcel to address (many to many)• apartments• timeshares• multi-story• condos• tenants in common
– mailing address– status (official, provisional ...)
Feature: Address Lineage
Main Street
150150 152 154 156
change request
Feature: Address Point Tablestreet based geo-coding falls short
Main Street 198100
101 199
Add Constraint:point must be within a polygon