An endpoint of a line that is not connected to another line because the line features do not form closed loops. A dangle may be formed when the line extends too far past the line it is supposed to touch (an overshoot) or not quite far enough (i.e., an undershoot). A dangle is not always an error; for example, it can represent cul-de-sac or dead-end street segments.
(Source: ArcGIS)
Data Providers
Companies that gather digital map data from a variety of public or private sources and adapt and enhance it for a use within GIS application software for sales and marketing analysis of customers or prospects.
Datum
In the most general sense, any set of numeric or geometric constants from which other quantities, such as coordinate systems, can be defined. A datum defines a reference surface. There are many types of datums, but most fall into two categories: horizontal and vertical.
(Source: ArcGIS)
Dissemination Areas (DA)
The Dissemination Areas cartographic boundary contains the boundaries of dissemination areas for the 2001 Census. A dissemination area (DA) is a small area composed of one or more neighbouring blocks. DAs cover all of Canada and replace Enumeration Areas (EAs) as the smallest standard geographic areas for which all census data are disseminated.
DMS
Degrees/minutes/seconds, A unit of measure for describing latitude and longitude. A degree is 1/360th of a circle. A degree is further divided into 60 minutes and a minute is divided into 60 seconds.
(Source: ArcGIS dictionary)
Double Precision
The level of coordinate exactness based on the possible number of significant digits that can be stored for each coordinate. Datasets can be stored in either single or double precision. Double-precision geometries store up to 15 significant digits per coordinate (typically 13 to 14 significant digits), retaining the accuracy of much less than one meter at a global extent.
(Source: ArcGIS dictionary)
Address Points
MDU Buildings
Enhanced Points of Interest
Platinum Postal Suite
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CANMAP PRODUCTS 
