A target object collection is the set of target objects that are associated with the relationships in a particular relationship collection. For example, the relationship collection in the following figure:
corresponds to this target object collection
because the underlying data looks like this
The object that is common to all of the relationships in the corresponding relationship collection is referred to as the source object. In the preceding figure, the object describing Frank is the source object. The objects describing Kim, Iola, and Fenton are target objects.