diff --git a/code/ConcTimecourseView.m b/code/ConcTimecourseView.m
index 57ca81c..48da3b3 100644
--- a/code/ConcTimecourseView.m
+++ b/code/ConcTimecourseView.m
@@ -1,8 +1,6 @@
 classdef ConcTimecourseView < handle
     
-    properties ( Access = private ) 
-        Model
-        
+    properties ( Access = private )
         ConcColors = [0.30,0.75,0.93;...
                       0.86,0.55,0.41;...
                       0.91,0.73,0.42]; % colors to plot concentrations
@@ -60,7 +58,6 @@
             obj.DataListener = dataListener;
             
             % save objects
-            obj.Model = model;
             obj.Axes = ax;
             
         end % constructor
@@ -70,8 +67,8 @@
     
     methods ( Access = private )
         
-        function update(obj,~,~)
-            t = obj.Model.SimDataTable;
+        function update(obj,srcModel,~)
+            t = srcModel.SimDataTable;
 
             set(obj.lhDrug,'XData',t.Time, 'YData',t.Drug);
             set(obj.lhReceptor,'XData',t.Time, 'YData',t.Receptor);
diff --git a/code/LampView.m b/code/LampView.m
index 5bb823b..9e2d1b0 100644
--- a/code/LampView.m
+++ b/code/LampView.m
@@ -15,10 +15,6 @@
         LampObj
     end
 
-    properties ( Access=private )
-        Model
-    end
-
     properties( Access = private )
         DataListener % listener
     end
@@ -42,7 +38,6 @@
             obj.DataListener = dataListener;
 
             obj.LampObj = lampObj;
-            obj.Model = model;
 
         end % constructor
 
@@ -68,8 +63,8 @@
 
     methods ( Access = private )
 
-        function update(obj,~,~)
-                obj.IsOn = obj.Model.ROIsBetweenThresholds;
+        function update(obj,srcModel,~)
+                obj.IsOn = srcModel.ROIsBetweenThresholds;
         end % update
 
     end % private method
diff --git a/code/NCAView.m b/code/NCAView.m
index db36c3e..1e658d5 100644
--- a/code/NCAView.m
+++ b/code/NCAView.m
@@ -1,7 +1,6 @@
 classdef NCAView < handle
     
-    properties ( Access = private ) 
-        Model
+    properties ( Access = private )
         NCApanel
         GridLayout
         BackgroundColor = [1,1,1]
@@ -67,7 +66,6 @@
             obj.DataListener = dataListener;
             
             % save objects
-            obj.Model = model;
             obj.NCAoptions = opt;
             obj.NCApanel = ncapanel;
             obj.GridLayout = gl;
@@ -89,10 +87,10 @@
     
     methods ( Access = private )
         
-        function update(obj,~,~)
+        function update(obj,srcModel,~)
 
             % compute NCA parameters and display them in table
-            ncaParameters = sbionca(obj.Model.SimDataTable, obj.NCAoptions);
+            ncaParameters = sbionca(srcModel.SimDataTable, obj.NCAoptions);
             obj.NCAtable.ColumnName = ncaParameters.Properties.VariableNames(2:end);
             obj.NCAtable.Data = ncaParameters(:,2:end);
             
diff --git a/code/ROTimecourseView.m b/code/ROTimecourseView.m
index cea3fbb..eeda351 100644
--- a/code/ROTimecourseView.m
+++ b/code/ROTimecourseView.m
@@ -1,8 +1,6 @@
 classdef ROTimecourseView < handle
     
-    properties ( Access = private ) 
-        Model
-
+    properties ( Access = private )
         ThresholdStyle   = {'Color','r','Linewidth',2,'LineStyle','--',...
             'FontWeight','bold','LabelVerticalAlignment','middle'}; % style for threshold lines
 
@@ -60,7 +58,6 @@
             obj.DataListener = dataListener;
             
             % save objects
-            obj.Model = model;
             obj.Axes = ax;
             
         end % constructor
@@ -70,8 +67,8 @@
     
     methods ( Access = private )
         
-        function update(obj,~,~)
-            t = obj.Model.SimDataTable;
+        function update(obj,srcModel,~)
+            t = srcModel.SimDataTable;
 
             set(obj.lhRO,'XData',t.Time, 'YData',100*t.RO);