Advantages 
        
          - Low requirements for Client 
 
          - Single known platform for most program execution 
            
              - Excepting HTML and Form interpretation 
 
             
           
          - Great flexibility is possible 
 
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      Disadvantages 
        
          - Limited control of display 
            
              - Only what is possible in HTML, XML, PHP … 
 
             
           
          - Timing is limited 
            
              - Can get some timing differences (see Ulf's Method) 
 
              - But will have a large constant error 
 
             
           
          - Network traffic during study 
 
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