Use Of Posting Layer (Current, Tax, Operation) in AX 2009

hiiiiiiiiiiiiiiiiiiiiiii

Can some body know what is the use and how to use Posting layers specifically operation and tax in ax 2009

Thanks

Operation and tax layer are additional sets of books. The tax layer is often used for fixed assets in countries where it is permissible to use differing depreciations methods for tax reporting and for financial statements (Germany would be an example). You can set up different value models for different layers. I’ve never actually seen the operation layer used but if a company would have a need for an additional set of books then this layer could be used.