How is Incremental Model different from Spiral Model?
                                                                            
                                        
                                            
                                                                                                    - Progress can be measured for Incremental Model.
 
                                                                                                    - Changing requirements can be accommodated in Incremental Model.
 
                                                                                                    - Users can see the system early in Incremental Model.
 
                                                                                                    - no difference between these two
 
                                                                                            
                                         
                                                                     
                            
(a).Progress can be measured for Incremental Model.
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