outcoming
                                                                                                                                                                                                                                                                                
                                                                                                                                                                                                                                                                                
                                                 read data                                                                                                                                                                                                                      
                                                                                                                                                                                                                                                                                
                                                                                                                                                                                                                                                                                
                                                                                                                                                                                                                          Warning                                               
                                                                                                                                                                                                                                                                                
                                                                                                                                                                                                                                                                                
                                                                                                                                                                                                                                                                                
                     generate diagrams                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                
                                                                                                                                                                                                                                                                                
                                                                                                                                                                                                                                                                                
                                                                                                                                                             yes                                                                                                                
                                                 more data?                                                                                                                                                                                                            incoming