Each property in a property group is written as a value of an individual attribute of the <location> node. The software is not required to write the properties in property groups to the template as .xml attributes because these properties might also exist as node values in the template .xml file. By convention, delivered property groups use the underscore (_) character. For example, a property group might define values that relate to the logical concept of location. The property group might further contain three properties named A, B, and C. In this case, the property group is named location_A_B_C. By convention, the software creates a new name for each property within the group by joining the property group name with the property name. For example, the name for property A in the previous example is location_A_B_C_A.