PLM instance (or instantiation)

A specific occurrence of an abstract item class or type; the occurrence inherits characteristics from the abstraction. For example, the item class includes part types (like machine screw and transistor) and document types (like specification or assembly drawing). A particular type (transistor) is an instance of the part class. Likewise, a 2N2222 transistor is an instance of the transistor type. "Instantiation" refers to the creation of an instance from the abstract object.