The user is not given an effective method for drawing relationships between {HEAD ~ the columns} and keys in {TAIL ~ the table} without opening additional windows or panels 
in
The user is not given an effective method for drawing relationships between { HEAD ~ the columns } and keys in { TAIL ~ the table } without opening additional windows or panels
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH