ADT for a DirectoryRequest POI property used to sort the result. It may take on the well-known values of “Name” and “Distance” as well as any other POI property names. Ascending/Descending Specifies the unit for measuring distance. Directory Service Response ADT for a ProximityResponse. One or more POIs may be returned Defines a spatial filter which selects POIs located within a specified bounding area. Defines a spatial filter which selects POIs located within a specified distance from a location. Defines a spatial filter which selects the POI nearest to the specified location. Proximity - nearest by straightline distance Base element that specifies POI selection criteria Abstract POI selection criteria Defines the sort direction (Ascending/Descending) Defines the type of location constraints to perform search. Defines a POI and its distance from a predetermined point. Specifies POI selection criteria as a list of properties Defines POI selection criteria as a list of properties Abstract POI property Base element representing a POI property Defines a POI property, represented as a name/value pair A POI property, represented as a name/value pair Enumeration of references to properties within the POI element