diff --git a/force_bdss/core_plugins/csv_extractor/csv_extractor/csv_extractor_bundle.py b/force_bdss/core_plugins/csv_extractor/csv_extractor/csv_extractor_bundle.py
index 708123d5fd5cefdfc54f36df0ea8b7acee9cf9de..b905c73e205a29b5e1da2dd2f70f951444c8fec7 100644
--- a/force_bdss/core_plugins/csv_extractor/csv_extractor/csv_extractor_bundle.py
+++ b/force_bdss/core_plugins/csv_extractor/csv_extractor/csv_extractor_bundle.py
@@ -14,8 +14,5 @@ class CSVExtractorBundle(HasStrictTraits):
     def create_model(self, model_data):
         return CSVExtractorModel.from_json(model_data)
 
-    def create_ui(self, model):
-        pass
-
     def create_data_source(self, application, model):
         return CSVExtractorDataSource(self, application, model)
diff --git a/force_bdss/core_plugins/test_mco/dakota/dakota_bundle.py b/force_bdss/core_plugins/test_mco/dakota/dakota_bundle.py
index dd0ef08d38b7daafdf8ff552af3348fab81ae44d..12c34ab2e3502eb1edbbf0ef9952551da93b0db8 100644
--- a/force_bdss/core_plugins/test_mco/dakota/dakota_bundle.py
+++ b/force_bdss/core_plugins/test_mco/dakota/dakota_bundle.py
@@ -15,8 +15,5 @@ class DakotaBundle(HasStrictTraits):
     def create_model(self, model_data):
         return DakotaModel.from_json(model_data)
 
-    def create_ui(self):
-        pass
-
     def create_optimizer(self, application, model):
         return DakotaOptimizer(self, application, model)
diff --git a/force_bdss/data_sources/i_data_source_bundle.py b/force_bdss/data_sources/i_data_source_bundle.py
index f277caedbd43319478a3605f9b2e815fd0725324..d7f80ac2ccf50d8703c95aeeda8fc6f00385f26b 100644
--- a/force_bdss/data_sources/i_data_source_bundle.py
+++ b/force_bdss/data_sources/i_data_source_bundle.py
@@ -4,9 +4,6 @@ from traits.api import Interface, String
 class IDataSourceBundle(Interface):
     name = String()
 
-    def create_ui(self):
-        pass
-
     def create_data_source(self, application, model):
         pass
 
diff --git a/force_bdss/mco/i_multi_criteria_optimizer_bundle.py b/force_bdss/mco/i_multi_criteria_optimizer_bundle.py
index 3a584c4103fa11b71c648e03791f3a205188db33..33c9a37c78a932045132609ef4f3a455b706ba22 100644
--- a/force_bdss/mco/i_multi_criteria_optimizer_bundle.py
+++ b/force_bdss/mco/i_multi_criteria_optimizer_bundle.py
@@ -7,8 +7,5 @@ class IMultiCriteriaOptimizerBundle(Interface):
     def create_optimizer(self, application, model):
         pass
 
-    def create_ui(self):
-        pass
-
     def create_model(self, model_data):
         pass