Updated definitions for Floors.

@@ -624,12 +624,21 @@
                     provided here is based on an external consideration.   Typically only the common spatial types are used: Circle, Ellipse, Spheroid, and Ellispoid shape types.
                     provided here is based on an external consideration.   Typically only the common spatial types are used: Circle, Ellipse, Spheroid, and Ellispoid shape types.
                 </comment>
                 </comment>
             </elem>
             </elem>
-            <elem name="floor" type="Tensor.int16" multiplicity="0..1">
+            <elem name="floor" type="Tensor.float32" multiplicity="0..1">
                 <comment>
                 <comment>
-                    Optional floor specifier if availble.  Floor values are specified by local venue mapping information. As general guideline, 0 denotes the ground-level floor.   
-                    Negative values denote floors under ground.
+                    Optional floor number if availble.  Floor number are specified by local venue mapping floor index. As general guideline, 0 denotes the ground-level floor.   
+                    Negative values denote floors underground. Ideally, numbers should be linear and not have jumps common with many building label schemes (e.g. floor 13 is 
+                    not present).  The floor number may be a calculated quantity derived from multiple data sources, which may result in partial floor estimtes (e.g. returns floor 2.5). 
+                    The floor number is useful for indexing data.   See floorLabel for a descriptive floor identifier.
                 </comment>
                 </comment>
             </elem>
             </elem>
+            <elem name="floorLabel" type="string" multiplicity="0..1">
+                <comment>
+                    Optional descriptive floor label if available. Floor labels are useful to provide a floor specifier not readily indexed like floor number.  Examples include 
+                    'Lobby', 'Parking 1', 'Parking 2', 'Mezzannine 1', '12', '14', 'Observation Deck', etc.  In cases, where the result is between floors, the floor label may 
+                    specify a compound label such as 'P1/P2' if supported.
+                <comment>
+            </elem>
         </struct>
         </struct>
         
         
         <!-- eventually may be able to support variable sized elements
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