with reference to this question,
Is there a way to determine which is the most appropriate archiving object to use, to remove the most records within the table?
In addition to mapping the tables with archive objects, TAANA analysis should also be run on the tables in question to identify various document types within the concerned table and the volume (in numbers) for each of the document types per fiscal years.
once you have the information in hand, the as-is business process has to be studied and understand the process flow within your systems.
there could also be cross-functional and cross-system dependencies, all this is basically where the functional study begins so that we can come up with a solution plan (which archive objects to implement with the various transaction types).
an ideal example in this case is CRM system where there is one header table "CRMD_ORDERADM_H" and all service and sales related data like (service reqiests, sales orders, service orders, incidents , opportunities ) are all coming out of this table.
after doing a TAANA , we were able to find 7 key archiving objects .