Joining two extracts via a common property

Is it possible to join two extracts within an extract package using a common property that both extracts are linked by?

The extracts I would like to join are from two different viewpoints, within the same application. They both have different unique Name identifers and the Name in viewpoint 2 matches to a property held in viewpoint 1.

For example-

Say Viewpoint 1 has:

Product X, Acc Class A, Rep Chart A

Product Y, Acc Class A, Rep Chart A

Product Z, Acc Class B, Rep Chart B

Say Viewpoint 2 has:

Acc Class A, Acc Class Descripton A, Acc Class Supp Information 1 A, Acc Class Supp Information 2 A