Once a Characteristic is defined on the Define characteristics tab, it can be assigned to any underlying object the characteristic has been defined on. On the Characteristics tab all defined characteristics are listed. There are 2 kinds of characteristics; grouped and ungrouped.
The ungrouped characteristics are listed with a check box. Checking a characteristic's check box means assigning it to the object. Grouped characteristics are listed in a frame that has the name of the group. There are two kinds of grouped characteristics: single select and multi select. The multi select characteristics are listed with check boxes. The single select characteristics are listed with radio buttons. Only one single select characteristic can be selected per group.