How to prepare TSD ?

Hi all,

How to prepare a technical specification document for example say, open purchase order  in MM module? What does a  TSD basically contain? I will give you the scenario, please let me know what all should be mentioned in a TSD doc. Do I need to include what all functions I will be working on? I am new to ABAP , please guide me. Thanks in advance.

Business Scenario: 

Report should display a list of open purchase orders when the PO quantity is greater than the total goods receipt quantity.

The following is the input:

Processing Logic:

Pull the list of PO’s with the above selection criteria based on below logic.

Check the entry exist in EKBE table and when EKBE-VGABE = 1.

If entry does not exist in EKBE, for those PO’s Goods Receipt is not done. So list all those PO’s in the output with the details given in the output format. For these PO’s Total GR Quantity in the output will be 0 and open PO quantity will be same as PO quantity.

For those PO’s where entries are available in EKBE, then pull the below material document data for PO line items.

EKBE-EBELN----- PO Number

EKBE-EBELP------ PO Line Item Number

EKBE-BELNR------Material Document Number

EKBE-MENGE-----Quantity

Sum up the GR quantities (EKBE-MENGE) for the material documents at PO line item level to derive “ Total GR quantity” and list the PO’s in the output where the “PO quantity” is greater than the “Total GR quantity”. Open PO quantity for this case will be “PO Quantity - Total GR quantity”.

Output Format: