SOLUTION 3: use several independent processes,each one handles one request o Shortcomings: need a lot of processes which use the same resource build the processes frequently switch the processes frequently huge overhead o Analysis the management information of the processes are similar the works of switching between the processes are similarSOLUTION 3:  use several independent processes, each one handles one request  Shortcomings:  need a lot of processes which use the same resource  build the processes frequently  switch the processes frequently  huge overhead  Analysis  the management information of the processes are similar  the works of switching between the processes are similar