Net requirements and Gross requirements

Hi ,

In the Released products - > Plan ( ribbon button ) has two options Net requirements and Gross requirements .

What is the difference between the Net requirements and Gross requirements ?

Explain with an example .

Gross requirement:The requirement which is generated through “Forecast scheduling”

Net requirement: The requirement which is generated through “Master scheduling”

To elaborate on Santosh: http://technet.microsoft.com/en-us/library/aa577013.aspx