Read-only property showing the actual object name. It is composed of the Module path and the Object name.
[ModuleName1.ModuleName2.ModuleNameN.]ObjectName
Where:
[ModuleName1.ModuleName2.ModuleNameN.]
Is the Module path.
Note: The Root module is always omitted in the Module path.
ObjectName
Is the name of the Object (its Name property).
This — read-only — property is intended to provide a quick way to identify an object, as several objects can have the same value for the Name property if they have a different Module path.
Consider the following Product Transaction object:

It will have the Qualified Name property set as follows: Purchases.Stock.Product

Module object
Name property