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SEQUENCE OF MODELS











              oWhat  is  the  relationship  between  logical  and  physical

               model?



              oMany  systems  analysts  create  a  physical  model  of  the


               current  system  and  then  develop  a  logical  model  of  the

               current system before tackling a logical model of the new

               system



              oPerforming that extra step allows them to understand the


               current system better










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