Archiving - (cross)Functional Dependencies

Hello Gurus,

    While considering for Archiving of an object how can we make sure that functional (including cross) dependencies are full filled?

    For example let's say I am Archiving Purchase Order data how can I make sure that relevant PO data in warehouse Module is good to be archived with no leaks? I know that DB15 gives all the tables/transaction codes that are cross connected across the functional areas.

    Any ideas? or document that I can refer too? further more is there a facility in SAP to see all the cross connected archiving data for example  I want to see the PO-> their relevant GR -> their relevant Invoices..etc...etc

Thanks ahead.

Charan