Level-0
Multi disease
       User                                   prediction                                   Admin
                                                system
                           Details                 0                Maintain result
Level-1
                            Register                Details                      Details           Log in   Disease           Test data                 Predict   Report card
      User                    0.1                   submit                      analysis            0.4      select            submit                     0.7     generation
                                                      0.2                         0.3                         0.5                0.6                                 0.8
Level-2                                                 Heart                                  Level-3
                                                       disease                                                  Pregnancies
                                Disease                 0.5.0                                                      0.5.1.0                                                Missing and
      User                       select                                                                                                 Glucose                           inconsistent
                                  0.5                                                                                                    0.5.1.1                         data handelling
                                                                     Diabetes                                                                                                0.5.1.6
                                                                       0.5.1
    Eye disease                                                                                                                                 Blood
     detection                                                                                              Diabetes                           pressure                     Training
       0.5.6                                                      Skin                             User       0.5.1                             0.5.1.2                      0.5.1.7
                                                                 cancer
                                                                  0.5.2
          Kidney disease                                                                                                                       Skin
             detection                                                                                                                      thickness
               0.5.5                                     Tumor                                                                                0.5.1.3                           Testing
                             Liver disease              detection                                                                                                               0.5.1.8
                               detection                  0.5.3
                                 0.5.4                                                                                         BMI
                                                                                                                              0.5.1.4
                                                                                                               Age                                                         Report card
                                                                                                              0.5.1.5                                                       generation
                                                                                                                                                                              0.5.1.9