Design ,Technical & functional Documents

Question

We are going to send PO(R/3) to our Supplier network thru XI and also we are going to receive the Invoices into our R/3 System.
For the Above scenario we need the following Documents
1)Design Documentation
2) Functional Documentation
3) Technical Documentation
I want to know what Information I need for the above classifications and also who will be incharge for the above like who will execute the Design Documentation, Who will write the Functional and Technical Documentation?
If there is any useful documents available?
Thanks.

Answer 1

Jenni
Design Documentation tell us how the interfaces are going to work for the entire project. So usually Architects or Senior guys who have indepth experience of XI will usually write this.
Functional Documentation tell us the functioanlity of the interface. This is written by the Functional guys who have indepth knowledge about the functionality what they are looking from the interface. They may even take the help of technical guys to some extent.
Technical Documentation tells us how the interface is going to be worked technically. Here we will mention what are the adapters, naming conventions etc we are going to use for the interface. This is written by the XI developers. This are purely my views and this may change from person to person jenni.
For further info go through the urls:
Re: Building XI
XI technical specification documents
Regards,
---Satish