8. A method according to claim 1 , wherein said icon comprises a multi-variant thematic mapping icon configured to graphically display data for a result of said query and at least a second data item relating to said network for a real physical location in said network corresponding to the location of said icon on said map.
8. A method according to claim 1 , wherein said icon comprises a multi-variant thematic mapping icon configured to graphically display data for a result of said query and at least a second data item relating to said network for a real physical location in said network corresponding to the location of said icon on said map. 9. A method according to claim 8 , wherein a parameter of said multi-variant thematic mapping icon is dependent on a value of said result of said query.