A method in a computing device for locking multiple feature instances in {HEAD ~ a single web feature service data transaction request} from {TAIL ~ a client} comprising: 
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A method in a computing device for locking multiple feature instances in { HEAD ~ a single web feature service data transaction request } from { TAIL ~ a client } comprising :
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH