The computer implemented method 1, wherein the step of modifying {TAIL ~ a set} of features associated with {HEAD ~ the selected user role} to form a set of customized features comprises: 
The computer implemented method 1 , wherein the step of modifying { TAIL ~ a set } of features associated with { HEAD ~ the selected user role } to form a set of customized features comprises :
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH