Principles of Provisioning Data for NG9-1-1

This course introduces the foundational requirement that GIS data must be provisioned to ECRF/LVF systems. Provisioning of GIS data to an ECRF and LVF for NG9-1-1 is the ongoing process of publishing the most current and accurate authoritative GIS data into ECRF/LVF systems. (For the complete detailed functional and interface specification for ECRF/LVF systems refer to NENA-STA-010.)

NG9-1-1 will have a profound impact on the operation of 9-1-1 services and PSAPs. In particular, the MSAG and ALI systems will be replaced with ECRF/LVF and LIS systems that will be provisioned with GIS data. The GIS data will be the primary authoritative source for location-based call routing and location validation information. The ECRF/LVF requires two types of GIS data: service area boundaries, and address location data. The ECRF/LVF is provisioned with authoritative GIS data for the geographic area covered by the ECRF/LVF and the GIS data is updated on a regular basis.

GIS data providers that provision authoritative data to a 9-1-1 ECRF/LVF system are usually responsible for the following:

• Working with 9-1-1 authorities to determine policies, responsibilities, and commitments.
• Create, maintain, and document GIS data in adherence to relevant NENA standards.
• Provide the necessary infrastructure or service to keep the GIS data current in a timely fashion.
• Supply GIS data to the Spatial Interface (SI) for use in the ECRF/LVF.
• Work with neighboring agencies and GIS Data Providers to resolve boundary discrepancies.
• Accept GAP/OVERLAP event notification from an ECRF/LVF via the SI and resolve errors in a timely manner.
• Validate the correctness of provisioned service area boundary polygons.

Specific VEP workflows and software functionality for meeting these responsibilities are detailed in other courses in the DATAMARK VEP Support Center.

For more information - NENA Standards for the Provisioning and Maintenance of GIS data to ECRF and LVFs: NENA-STA-005.1.1-2017.