Measurement of Standard Model Processes in                                     
e+e- Collisions at the Highest LEP Energies                                    
  
        Based on the analysis of data recorded during 2000 with the OPAL       
        detector at LEP, several preliminary measurements and comparisons      
        with the Standard Model expectations are described. In particular,     
        results on cross-sections for hadronic, lepton pair, and multi-photon  
        final states and on forward-backward asymmetries for the leptonic      
        final states are presented. These results are used to determine the    
        electromagnetic coupling constant at LEP2 energies and to put limits   
        on new physics. Preliminary determinations of the cross-sections for   
        WW and ZZ production are described. QCD studies of hadronic decays     
        are also presented at these highest e+e- centre-of-mass energies.      
  
 Parallel session : 5<br>3             
 Plenary  session :6a<br>11