diff --git a/Modules/ModelFit/include/mitkExpDecayOffsetModel.h b/Modules/ModelFit/include/mitkExpDecayOffsetModel.h
index 33d286984b..cc20cb5dcd 100644
--- a/Modules/ModelFit/include/mitkExpDecayOffsetModel.h
+++ b/Modules/ModelFit/include/mitkExpDecayOffsetModel.h
@@ -1,87 +1,139 @@
 /*============================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center (DKFZ)
 All rights reserved.
 
 Use of this source code is governed by a 3-clause BSD license that can be
 found in the LICENSE file.
 
 ============================================================================*/
 
 #ifndef mitkExpDecayOffsetModel_h
 #define mitkExpDecayOffsetModel_h
 
 #include "mitkModelBase.h"
 
 #include "MitkModelFitExports.h"
 
 namespace mitk
 {
 
   /** @class ExpDecayOffsetModel
    * @brief Implementation of a general exponential decay model with offset,
    * following the function: f(x) = a * exp(-1.0 * x * b) + c.
    */
   class MITKMODELFIT_EXPORT ExpDecayOffsetModel : public mitk::ModelBase
   {
 
   public:
     typedef ExpDecayOffsetModel Self;
     typedef mitk::ModelBase Superclass;
     typedef itk::SmartPointer< Self >                            Pointer;
     typedef itk::SmartPointer< const Self >                      ConstPointer;
 
     typedef Superclass::ParameterNameType  ParameterNameType;
     typedef Superclass::ParametersSizeType ParametersSizeType;
 
     /** Method for creation through the object factory. */
     itkFactorylessNewMacro(Self);
     itkCloneMacro(Self);
 
     /** Run-time type information (and related methods). */
     itkTypeMacro(ExpDecayOffsetModel, ModelBase);
 
-    std::string GetModelDisplayName() const override;
+    static const std::string NAME_PARAMETER_y0;
+    static const std::string NAME_PARAMETER_k;
+    static const std::string NAME_PARAMETER_y_bl;
 
-    std::string GetModelType() const override;
+    static const unsigned int NUMBER_OF_PARAMETERS;
 
-    FunctionStringType GetFunctionString() const override;
+    static const std::string UNIT_PARAMETER_y0;
+    static const std::string UNIT_PARAMETER_k;
+    static const std::string UNIT_PARAMETER_y_bl;
 
-    std::string GetXName() const override;
+    static const unsigned int POSITION_PARAMETER_y0;
+    static const unsigned int POSITION_PARAMETER_k;
+    static const unsigned int POSITION_PARAMETER_y_bl;
+
+    static const unsigned int NUMBER_OF_DERIVED_PARAMETERS;
+
+    static const unsigned int NUMBER_OF_STATIC_PARAMETERS;
+
+    static const std::string MODEL_DISPLAY_NAME;
+
+    static const std::string MODEL_TYPE;
+
+    static const std::string FUNCTION_STRING;
+
+    static const std::string X_NAME;
+
+    static const std::string X_AXIS_NAME;
+
+    static const std::string X_AXIS_UNIT;
+
+    static const std::string Y_AXIS_NAME;
+
+    static const std::string Y_AXIS_UNIT;
 
     ParameterNamesType GetParameterNames() const override;
 
     ParametersSizeType  GetNumberOfParameters() const override;
 
+    ParamterUnitMapType GetParameterUnits() const override;
+
+    ParameterNamesType GetDerivedParameterNames() const override;
+
+    ParametersSizeType  GetNumberOfDerivedParameters() const override;
+
+    ParamterUnitMapType GetDerivedParameterUnits() const override;
+
     ParameterNamesType GetStaticParameterNames() const override;
 
     ParametersSizeType GetNumberOfStaticParameters() const override;
 
+    ParamterUnitMapType GetStaticParameterUnits() const override;
+
+    std::string GetModelDisplayName() const override;
+
+    std::string GetModelType() const override;
+
+    FunctionStringType GetFunctionString() const override;
+
+    std::string GetXName() const override;
+
+    std::string GetXAxisName() const override;
+
+    std::string GetXAxisUnit() const override;
+
+    std::string GetYAxisName() const override;
+
+    std::string GetYAxisUnit() const override;
+
   protected:
     ExpDecayOffsetModel() {};
     ~ExpDecayOffsetModel() override {};
 
     /**
      * Actual implementation of the clone method. This method should be reimplemeted
      * in subclasses to clone the extra required parameters.
      */
     itk::LightObject::Pointer InternalClone() const override;
 
     ModelResultType ComputeModelfunction(const ParametersType& parameters) const override;
 
     void SetStaticParameter(const ParameterNameType& name,
                                     const StaticParameterValuesType& values) override;
     StaticParameterValuesType GetStaticParameterValue(const ParameterNameType& name) const override;
 
   private:
 
     //No copy constructor allowed
     ExpDecayOffsetModel(const Self& source);
     void operator=(const Self&);  //purposely not implemented
 
   };
 }
 
 #endif
diff --git a/Modules/ModelFit/src/Models/mitkExpDecayOffsetModel.cpp b/Modules/ModelFit/src/Models/mitkExpDecayOffsetModel.cpp
index 4b9a687d65..e174825320 100644
--- a/Modules/ModelFit/src/Models/mitkExpDecayOffsetModel.cpp
+++ b/Modules/ModelFit/src/Models/mitkExpDecayOffsetModel.cpp
@@ -1,101 +1,205 @@
 /*============================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center (DKFZ)
 All rights reserved.
 
 Use of this source code is governed by a 3-clause BSD license that can be
 found in the LICENSE file.
 
 ============================================================================*/
 
 #include "mitkExpDecayOffsetModel.h"
 
+
+const std::string mitk::ExpDecayOffsetModel::NAME_PARAMETER_y0 = "y0";
+const std::string mitk::ExpDecayOffsetModel::NAME_PARAMETER_k = "k";
+const std::string mitk::ExpDecayOffsetModel::NAME_PARAMETER_y_bl = "y_bl";
+
+const unsigned int mitk::ExpDecayOffsetModel::NUMBER_OF_PARAMETERS = 3;
+
+const std::string mitk::ExpDecayOffsetModel::UNIT_PARAMETER_y0 = "[y]";
+const std::string mitk::ExpDecayOffsetModel::UNIT_PARAMETER_k = "1/[x]";
+const std::string mitk::ExpDecayOffsetModel::UNIT_PARAMETER_y_bl = "[y]";
+
+const unsigned int mitk::ExpDecayOffsetModel::POSITION_PARAMETER_y0 = 0;
+const unsigned int mitk::ExpDecayOffsetModel::POSITION_PARAMETER_k = 1;
+const unsigned int mitk::ExpDecayOffsetModel::POSITION_PARAMETER_y_bl = 2;
+
+const unsigned int mitk::ExpDecayOffsetModel::NUMBER_OF_DERIVED_PARAMETERS = 0;
+
+const unsigned int mitk::ExpDecayOffsetModel::NUMBER_OF_STATIC_PARAMETERS = 0;
+
+const std::string mitk::ExpDecayOffsetModel::MODEL_DISPLAY_NAME = "Exponential Decay Offset Model";
+
+const std::string mitk::ExpDecayOffsetModel::MODEL_TYPE = "Generic";
+
+const std::string mitk::ExpDecayOffsetModel::FUNCTION_STRING = "y(x) = y0 * exp(-k*x) + y_bl";
+
+const std::string mitk::ExpDecayOffsetModel::X_NAME = "x";
+
+const std::string mitk::ExpDecayOffsetModel::X_AXIS_NAME = "x";
+
+const std::string mitk::ExpDecayOffsetModel::X_AXIS_UNIT = "[x]";
+
+const std::string mitk::ExpDecayOffsetModel::Y_AXIS_NAME = "y";
+
+const std::string mitk::ExpDecayOffsetModel::Y_AXIS_UNIT = "[y]";
+
+///////////
+
 std::string mitk::ExpDecayOffsetModel::GetModelDisplayName() const
 {
-  return "Exponential Decay Offset Model";
+  return MODEL_DISPLAY_NAME;
 };
 
 std::string mitk::ExpDecayOffsetModel::GetModelType() const
 {
-  return "Generic";
+  return MODEL_TYPE;
 };
 
 mitk::ExpDecayOffsetModel::FunctionStringType mitk::ExpDecayOffsetModel::GetFunctionString() const
 {
-  return "a*exp(-1.0*x*b)+c";
+  return FUNCTION_STRING;
 };
 
 std::string mitk::ExpDecayOffsetModel::GetXName() const
 {
-  return "x";
+  return X_NAME;
 };
 
+std::string mitk::ExpDecayOffsetModel::GetXAxisName() const
+{
+  return X_AXIS_NAME;
+};
+
+std::string mitk::ExpDecayOffsetModel::GetXAxisUnit() const
+{
+  return X_AXIS_UNIT;
+}
+
+std::string mitk::ExpDecayOffsetModel::GetYAxisName() const
+{
+  return Y_AXIS_NAME;
+};
+
+std::string mitk::ExpDecayOffsetModel::GetYAxisUnit() const
+{
+  return Y_AXIS_UNIT;
+}
+
 mitk::ExpDecayOffsetModel::ParameterNamesType
 mitk::ExpDecayOffsetModel::GetParameterNames() const
 {
   ParameterNamesType result;
-  result.push_back("a");
-  result.push_back("b");
-  result.push_back("c");
+  result.push_back(NAME_PARAMETER_y0);
+  result.push_back(NAME_PARAMETER_k);
+  result.push_back(NAME_PARAMETER_y_bl);
   return result;
 };
 
+mitk::ExpDecayOffsetModel::ParamterUnitMapType mitk::ExpDecayOffsetModel::GetParameterUnits() const
+{
+  ParamterUnitMapType result;
+
+  result.insert(std::make_pair(NAME_PARAMETER_y0, UNIT_PARAMETER_y0));
+  result.insert(std::make_pair(NAME_PARAMETER_k, UNIT_PARAMETER_k));
+  result.insert(std::make_pair(NAME_PARAMETER_y_bl, UNIT_PARAMETER_y_bl));
+
+  return result;
+}
+
 mitk::ExpDecayOffsetModel::ParametersSizeType
 mitk::ExpDecayOffsetModel::GetNumberOfParameters() const
 {
-  return 3;
+  return NUMBER_OF_PARAMETERS;
+};
+
+mitk::ExpDecayOffsetModel::ParameterNamesType
+mitk::ExpDecayOffsetModel::GetDerivedParameterNames() const
+{
+  ParameterNamesType result;
+
+  //do nothing
+
+  return result;
+};
+
+mitk::ExpDecayOffsetModel::ParametersSizeType
+mitk::ExpDecayOffsetModel::GetNumberOfDerivedParameters() const
+{
+  return NUMBER_OF_DERIVED_PARAMETERS;
 };
 
+mitk::ExpDecayOffsetModel::ParamterUnitMapType mitk::ExpDecayOffsetModel::GetDerivedParameterUnits() const
+{
+  ParamterUnitMapType result;
+
+  //do nothing
+
+  return result;
+};
+
+
+
 mitk::ExpDecayOffsetModel::ModelResultType
 mitk::ExpDecayOffsetModel::ComputeModelfunction(const ParametersType& parameters) const
 {
   ModelResultType signal(m_TimeGrid.GetSize());
 
   const auto timeGridEnd = m_TimeGrid.end();
   ModelResultType::iterator signalPos = signal.begin();
 
   for (auto gridPos = m_TimeGrid.begin(); gridPos != timeGridEnd;
        ++gridPos, ++signalPos)
   {
     *signalPos = parameters[0] * exp(-1.0 * (*gridPos) * parameters[1]) + parameters[2];
   }
 
   return signal;
 };
 
 mitk::ExpDecayOffsetModel::ParameterNamesType mitk::ExpDecayOffsetModel::GetStaticParameterNames() const
 {
   return {};
 }
 
 mitk::ExpDecayOffsetModel::ParametersSizeType  mitk::ExpDecayOffsetModel::GetNumberOfStaticParameters() const
 {
-  return 0;
+  return NUMBER_OF_STATIC_PARAMETERS;
 }
 
+mitk::ExpDecayOffsetModel::ParamterUnitMapType mitk::ExpDecayOffsetModel::GetStaticParameterUnits() const
+{
+  ParamterUnitMapType result;
+
+  //do nothing
+
+  return result;
+};
+
 void mitk::ExpDecayOffsetModel::SetStaticParameter(const ParameterNameType& /*name*/,
     const StaticParameterValuesType& /*values*/)
 {
   //do nothing
 };
 
 mitk::ExpDecayOffsetModel::StaticParameterValuesType mitk::ExpDecayOffsetModel::GetStaticParameterValue(
   const ParameterNameType& /*name*/) const
 {
   StaticParameterValuesType result;
 
   //do nothing
 
   return result;
 };
 
 itk::LightObject::Pointer mitk::ExpDecayOffsetModel::InternalClone() const
 {
   ExpDecayOffsetModel::Pointer newClone = ExpDecayOffsetModel::New();
 
   newClone->SetTimeGrid(this->m_TimeGrid);
 
   return newClone.GetPointer();
 };