What is Mask and Why ?

Hello everyone,
could anyone please tell me, what a MASK is and why is it required ?
funnily, i know the process of masking, but could not understand purpose and need of it.
Thanks in Advance

MyGoldy,
There are two types of masking. One is hard masking where applets and native implementation exist in ROM. There is soft masking, where portion of an applet can exist in EEPROM. This allows for patches, or updates.
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Message was edited by:
Rajalekshmi V

Hi,
SAP designed some standard scenmarios to meet most of the clients requirements. But still it won't suit the clients exact business spcifications, so we ned this enhancements.
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