Customer import - How many tables ?

Hi All ,

I am getting confuse about the vendor / customer master import in Axapta 2012 though Excel addin Vs DIE frame work .

if we want to the customer / vendor in AX 2012 , if it is through Excel Addin  then you need to import atleast 3- 4 tables for customer or vendor  as per the below link.

ax2012exceldataimport.blogspot.in/.../dynamics-ax-2012-customers-import-using.html

But if you try to import the customer / vendor through the Data Import/ Export framework 2012 , it is only one table is required , need not import in different tables as per the below link.

axnmaia.wordpress.com/.../data-importexport-framework-walkthrough-importing-data

Could any one tell me which is correct way ?

I am really confuse about that how many tables we need to consider ?