Toolkit Glossary

General Terminology

NG911 Geodatabase

A geodatabase intended to be submitted to a central repository for Next Generation 9-1-1 geospatial data.

Configuration File

config.yml

config

YAML file containing the domains, fields, feature classes, and various other properties of Standards-compliant NG911 geodatabases in a structured format. This information is loaded into the Toolkit and exposed in the ng911ok.lib.session.config variable.

Required Feature Classes

Feature classes that are required to exist in an NG911 Geodatabase: ADDRESS_POINT DISCREPANCYAGENCY_BOUNDARY ESB_EMS_BOUNDARY ESB_FIRE_BOUNDARY ESB_LAW_BOUNDARY ESZ_BOUNDARY PSAP_BOUNDARY ROAD_CENTERLINE

Required Feature Dataset

A feature dataset, NG911 in the NG911 Geodatabase that contains the required feature classes.

Optional Feature Classes

Feature classes that may optionally exist in addition to the required feature classes in an NG911 Geodatabase: <None>

Optional Feature Dataset

A feature dataset, OptionalLayers in the NG911 Geodatabase that contains the optional feature classes.

Validation Terminology

Validation Function

Validation Method

An instance method of NG911Validator which checks some aspect of the geodatabase for Standards compliance. These methods should typically take arguments as described in Conventions below and must always return a list of ValidationErrorMessage (or a subclass thereof) objects (or an empty list, if there are no issues).

Validation Routine

An instance of ValidationRoutine that should be bound to NG911Validator. Routines are exposed as selectable options in the Validate Geodatabase tool, grouped by validation category. Generally, routines prepare and make calls to validation functions. For instantiation, see @routine.

Prerequisite Validation

A validation function that must be passed in order to complete another validation function.

See also

NG911Validator._precheck

Validation Helper Function

Validation Helper Method

A private method of NG911Validator that performs part of the logic of a validation function.

Validation Category

The heading under which a validation routine appears in the geoprocessing tool interface.

Validation Issue

A validation error, validation warning, or validation notice generated by the Validate Geodatabase tool and shown in TemplateCheckResults or FieldValuesCheckResults describing a problem or potential problem with the Standards-compliance of the NG911 geodatabase.

Severity

Attribute of a validation issue denoting the importance of a validation issue. The three severities, from highest to lowest, are Error, Warning, and Notice. Corresponds to ValidationErrorMessage.severity.

Validation Error

A validation issue of severity Error. These indicate that some aspect of the NG911 geodatabase is not in compliance with the Standards. Validation errors must be corrected before submission.

Validation Warning

A validation issue of severity Warning. These indicate potential mistakes in the NG911 geodatabase. While a geodatabase may be submitted despite warnings, users are strongly encouraged to ensure that warnings are not indicative of an error in the data.

Validation Notice

A validation issue of severity Notice. These indicate potential mistakes in the NG911 geodatabase that are more likely than validation warnings to actually be intentional and correct. A geodatabase with notices may be submitted.