Hi Muhammad,
Batch and Serial number are used for tracking external item transactions and allow you e.g. tracking what items have been delivered to customers or from vendors. Often organizational regulations require the use of batch and serial number e.g. in the pharmaceutical industry.
The Lot ID od Lot Number is an internal number for tracking receipt and corresponding issue transactions.
You can find some additional information on the following sites:
support.microsoft.com/.../953714
technet.microsoft.com/.../aa584374.aspx
technet.microsoft.com/.../aa582550.aspx
Hope it helps,
Ludwig