Norwest Corporation and Subsidiaries - Page 32

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          a system can operate together, and (iii) acceptance testing is              
          performed to determine whether the business user's requirements             
          have been satisfied.  Further, during this phase, the programmers           
          correct errors in the coding process (known as debugging) as well           
          as in the design process.                                                   
               Typically, the testing known as regression testing is                  
          performed on prerecorded data.  The use of prerecorded data is              
          important because the testers have known solutions and outcomes             
          against which the software can be tested, and new methods,                  
          capabilities, and functions can be tested without risk to real              
          (production) data.                                                          
               H.  Phase 8:  Implementation                                           
               In the implementation phase, the software is placed into               
          production (also known as going live), usually in a gradual                 
          process.  During this phase, the software application is used on            
          actual data by the end users (those who will be using the software          
          product).  It is also during this phase that the end users are              
          trained in the use of the software.                                         
               I.  Phase 9:  Postimplementation                                       
               In the postimplementation phase, the software is maintained            
          through continuous debugging, updating, and enhancing to meet new           
          business needs.                                                             








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Last modified: May 25, 2011