A feature is a single record that represents a real-world geographic entity. Features are composed of both a geometry (point, polyline, or polygon) and attributes, and are typically stored in a feature layer or a feature collection. The geometry represents the location and shape of the real-world entity; the attributes represent the fields and values that describe the entity. Applications can access features from a feature layer or a feature collection to visualize the feature's geographic and attribute information, execute spatial queries, perform analyses, or make edits to the feature's data directly. Examples of features include roads, fire hydrants, and property boundaries. Features are typically stored in a feature service, but can also be stored in other data sources including Shapefiles, GeoJSON files, and GeoPackages.

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