In a method for operating a computer system connected to a telecommunication network and provided with a data memory for storing communication data, {HEAD ~ a data trace} is compiled from parameters selected from {TAIL ~ time}, at least one position designation, and at least one content 
with is compiled from selected from
In a method for operating a computer system connected to a telecommunication network and provided with a data memory for storing communication data , { HEAD ~ a data trace } is compiled from parameters selected from { TAIL ~ time } , at least one position designation , and at least one content
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH