Object-oriented analysis (OOA) is a semiformal specification technique for the object-oriented paradigm. Object-oriented analysis consists of three steps. The first step is（1）. It determines how the various results are computed by the product and presents this information in the form of a （2） and associated scenarios. The second is （3） , which determines the classes and their attributes, then determines the interrelationships and interaction among the classes. The last step is （4） , which determines the actions performed by or to each class or subclass and presents this information in the form of （5） .

Object-oriented  analysis  (OOA)  is  a  semiformal  specification  technique  for  the object-oriented  paradigm.  Object-oriented  analysis  consists  of  three  steps.  The  first  step  is（1）.  It  determines  how  the  various  results  are  computed  by  the  product  and  presents  this information in the form of a  （2）  and associated scenarios. The second is  （3）  , which determines the classes and their attributes, then determines the interrelationships and interaction among the classes. The  last step is  （4）  ,  which determines  the  actions  performed  by or to each class or subclass and presents this information in the form of  （5）  .

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Object-oriented  analysis  (OOA)  is  a  semiformal  specification  technique  for  the object-oriented  paradigm.  Object-oriented  analysis  consists  of  three  steps.  The  first  step  is（1）.  It  determines  how  the  various  results  are  computed  by  the  product  and  presents  this information in the form of a  （2）  and associated scenarios. The second is  （3）  , which determines the classes and their attributes, then determines the interrelationships and interaction among the classes. The  last step is  （4）  ,  which determines  the  actions  performed  by or to each class or subclass and presents this information in the form of  （5）  .

Object-oriented  analysis  (OOA)  is  a  semiformal  specification  technique  for  the object-oriented  paradigm.  Object-oriented  analysis  consists  of  three  steps.  The  first  step  is（1）.  It  determines  how  the  various  results  are  computed  by  the  product  and  presents  this information in the form of a  （2）  and associated scenarios. The second is  （3）  , which determines the classes and their attributes, then determines the interrelationships and interaction among the classes. The  last step is  （4）  ,  which determines  the  actions  performed  by or to each class or subclass and presents this information in the form of  （5）  .

Object-oriented  analysis  (OOA)  is  a  semiformal  specification  technique  for  the object-oriented  paradigm.  Object-oriented  analysis  consists  of  three  steps.  The  first  step  is（1）.  It  determines  how  the  various  results  are  computed  by  the  product  and  presents  this information in the form of a  （2）  and associated scenarios. The second is  （3）  , which determines the classes and their attributes, then determines the interrelationships and interaction among the classes. The  last step is  （4）  ,  which determines  the  actions  performed  by or to each class or subclass and presents this information in the form of  （5）  .

Object-oriented  analysis  (OOA)  is  a  semiformal  specification  technique  for  the object-oriented  paradigm.  Object-oriented  analysis  consists  of  three  steps.  The  first  step  is（1）.  It  determines  how  the  various  results  are  computed  by  the  product  and  presents  this information in the form of a  （2）  and associated scenarios. The second is  （3）  , which determines the classes and their attributes, then determines the interrelationships and interaction among the classes. The  last step is  （4）  ,  which determines  the  actions  performed  by or to each class or subclass and presents this information in the form of  （5）  .