Index: branches/DataAnalysis Refactoring/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression-3.4.csproj
===================================================================
--- branches/DataAnalysis Refactoring/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression-3.4.csproj	(revision 5557)
+++ branches/DataAnalysis Refactoring/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression-3.4.csproj	(revision 5577)
@@ -109,4 +109,6 @@
   <ItemGroup>
     <Compile Include="Interfaces\ISymbolicRegressionModel.cs" />
+    <Compile Include="Interfaces\ISymbolicRegressionProblem.cs" />
+    <Compile Include="Interfaces\ISymbolicRegressionSingleObjectiveProblem.cs" />
     <Compile Include="Interfaces\ISymbolicRegressionSolution.cs" />
     <Compile Include="Interfaces\ISymbolicRegressionEvaluator.cs" />
Index: branches/DataAnalysis Refactoring/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/Interfaces/ISymbolicRegressionEvaluator.cs
===================================================================
--- branches/DataAnalysis Refactoring/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/Interfaces/ISymbolicRegressionEvaluator.cs	(revision 5557)
+++ branches/DataAnalysis Refactoring/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/Interfaces/ISymbolicRegressionEvaluator.cs	(revision 5577)
@@ -22,5 +22,5 @@
 
 namespace HeuristicLab.Problems.DataAnalysis.Symbolic.Regression {
-  public interface ISymbolicRegressionEvaluator : IRegressionEvaluator, ISymbolicDataAnalysisEvaluator<IRegressionProblemData> {
+  public interface ISymbolicRegressionEvaluator : ISymbolicDataAnalysisEvaluator<IRegressionProblemData> {
   }
 }
Index: branches/DataAnalysis Refactoring/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/Interfaces/ISymbolicRegressionProblem.cs
===================================================================
--- branches/DataAnalysis Refactoring/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/Interfaces/ISymbolicRegressionProblem.cs	(revision 5577)
+++ branches/DataAnalysis Refactoring/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/Interfaces/ISymbolicRegressionProblem.cs	(revision 5577)
@@ -0,0 +1,26 @@
+﻿#region License Information
+/* HeuristicLab
+ * Copyright (C) 2002-2011 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
+ *
+ * This file is part of HeuristicLab.
+ *
+ * HeuristicLab is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * HeuristicLab is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
+ */
+#endregion
+
+
+namespace HeuristicLab.Problems.DataAnalysis.Symbolic.Regression {
+  public interface ISymbolicRegressionProblem : ISymbolicDataAnalysisProblem, IRegressionProblem {
+  }
+}
Index: branches/DataAnalysis Refactoring/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/Interfaces/ISymbolicRegressionSingleObjectiveProblem.cs
===================================================================
--- branches/DataAnalysis Refactoring/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/Interfaces/ISymbolicRegressionSingleObjectiveProblem.cs	(revision 5577)
+++ branches/DataAnalysis Refactoring/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/Interfaces/ISymbolicRegressionSingleObjectiveProblem.cs	(revision 5577)
@@ -0,0 +1,28 @@
+﻿#region License Information
+/* HeuristicLab
+ * Copyright (C) 2002-2011 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
+ *
+ * This file is part of HeuristicLab.
+ *
+ * HeuristicLab is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * HeuristicLab is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
+ */
+#endregion
+
+using HeuristicLab.Optimization;
+
+namespace HeuristicLab.Problems.DataAnalysis.Symbolic.Regression {
+  public interface ISymbolicRegressionSingleObjectiveProblem : ISymbolicRegressionProblem, ISingleObjectiveProblem {
+    new ISymbolicRegressionSingleObjectiveEvaluator Evaluator { get; }
+  }
+}
