| AltitudeMeasure | Is the value and unit of measure in the z-axis in a thrre dimensional system.
Examples of this maybe the Altitude in the case of a map of the world, or the height or shelf in a rack system in the case of a manufacturing or warehouse facility. |
 CoordinateReference | Contains the sequenced identifier for the associated component or noun.Contains the sequenced identifier for the associated component or noun. |
| Latitude | |
| Longitude | |
| SystemID | Is the system in which the userid applies. |
| UserArea | Allows the user of OAGIS to extend the specification in order to provide additional information that is not captured in OAGIS. |