process data                                                                                                                                                                                                                                    
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                     no                                                 
                                                                                        processing fails?                                                                                                                                                                                                                                               
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                             yes                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                    upload data                                                                                                                                                                                                                         
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                          upload the data fails                                                                                                                                                                                                                                                                                     pass
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                             yes                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                        
                                                                                                                                  more data?