diff --git a/public/main.js b/public/main.js
index 14df36a950d4755a26f5cd1ebbb8177fc41bbfc0..6acaafd7bb38b02cf934761fdbcc1268d6ce9705 100644
--- a/public/main.js
+++ b/public/main.js
@@ -6319,7 +6319,7 @@ var $author$project$Main$init = function (_v0) {
 						$gampleman$elm_visualization$Zoom$init(
 							{height: $author$project$TreeView$h, width: $author$project$TreeView$w})))
 			},
-			{input: '', modelID: '0'},
+			{input1: '', input2: '', modelID1: '0', modelID2: '1019', nextChange: 2},
 			{parallelCoordinatesPlot: false, scatterPlot: true, starPlot: false, treeView: false}),
 		$author$project$Main$fetchData);
 };
@@ -9208,7 +9208,13 @@ var $author$project$Main$update = F2(
 								model,
 								{
 									plotVisible: {parallelCoordinatesPlot: false, scatterPlot: false, starPlot: true, treeView: false},
-									starplotOption: {input: model.starplotOption.input, modelID: id}
+									starplotOption: {
+										input1: model.starplotOption.input1,
+										input2: model.starplotOption.input2,
+										modelID1: (model.starplotOption.nextChange === 1) ? id : model.starplotOption.modelID1,
+										modelID2: (model.starplotOption.nextChange === 2) ? id : model.starplotOption.modelID2,
+										nextChange: (model.starplotOption.nextChange === 1) ? 2 : 1
+									}
 								}),
 							$elm$core$Platform$Cmd$none);
 				}
@@ -9257,7 +9263,13 @@ var $author$project$Main$update = F2(
 								model,
 								{
 									plotVisible: {parallelCoordinatesPlot: false, scatterPlot: false, starPlot: true, treeView: false},
-									starplotOption: {input: model.starplotOption.input, modelID: id}
+									starplotOption: {
+										input1: model.starplotOption.input1,
+										input2: model.starplotOption.input2,
+										modelID1: (model.starplotOption.nextChange === 1) ? id : model.starplotOption.modelID1,
+										modelID2: (model.starplotOption.nextChange === 2) ? id : model.starplotOption.modelID2,
+										nextChange: (model.starplotOption.nextChange === 1) ? 2 : 1
+									}
 								}),
 							$elm$core$Platform$Cmd$none);
 				}
@@ -9277,22 +9289,52 @@ var $author$project$Main$update = F2(
 					case 'Nothing1':
 						var _v3 = msg.a;
 						return _Utils_Tuple2(model, $elm$core$Platform$Cmd$none);
-					case 'InputChange':
+					case 'InputChange1':
 						var id = msg.a.a;
 						return _Utils_Tuple2(
 							_Utils_update(
 								model,
 								{
-									starplotOption: {input: id, modelID: model.starplotOption.modelID}
+									starplotOption: {input1: id, input2: model.starplotOption.input2, modelID1: model.starplotOption.modelID1, modelID2: model.starplotOption.modelID2, nextChange: model.starplotOption.nextChange}
 								}),
 							$elm$core$Platform$Cmd$none);
-					default:
+					case 'InputChange2':
+						var id = msg.a.a;
+						return _Utils_Tuple2(
+							_Utils_update(
+								model,
+								{
+									starplotOption: {input1: model.starplotOption.input1, input2: id, modelID1: model.starplotOption.modelID1, modelID2: model.starplotOption.modelID2, nextChange: model.starplotOption.nextChange}
+								}),
+							$elm$core$Platform$Cmd$none);
+					case 'SubmitNumber1':
 						var _v4 = msg.a;
 						return _Utils_Tuple2(
 							_Utils_update(
 								model,
 								{
-									starplotOption: {input: model.starplotOption.input, modelID: model.starplotOption.input}
+									starplotOption: {
+										input1: model.starplotOption.input1,
+										input2: model.starplotOption.input2,
+										modelID1: model.starplotOption.input1,
+										modelID2: model.starplotOption.modelID2,
+										nextChange: (model.starplotOption.nextChange === 1) ? 2 : 1
+									}
+								}),
+							$elm$core$Platform$Cmd$none);
+					default:
+						var _v5 = msg.a;
+						return _Utils_Tuple2(
+							_Utils_update(
+								model,
+								{
+									starplotOption: {
+										input1: model.starplotOption.input1,
+										input2: model.starplotOption.input2,
+										modelID1: model.starplotOption.modelID1,
+										modelID2: model.starplotOption.input2,
+										nextChange: (model.starplotOption.nextChange === 1) ? 2 : 1
+									}
 								}),
 							$elm$core$Platform$Cmd$none);
 				}
@@ -12100,11 +12142,15 @@ var $author$project$Scatterplot$viewScatterplot = function (model) {
 				$author$project$Scatterplot$scatterplot(filteredSmartphoneData)
 			]));
 };
-var $author$project$Starplot$InputChange = function (a) {
-	return {$: 'InputChange', a: a};
+var $author$project$Starplot$InputChange1 = function (a) {
+	return {$: 'InputChange1', a: a};
+};
+var $author$project$Starplot$InputChange2 = function (a) {
+	return {$: 'InputChange2', a: a};
 };
-var $author$project$Starplot$SubmitNumber = {$: 'SubmitNumber'};
-var $author$project$Starplot$starlength = 180;
+var $author$project$Starplot$SubmitNumber1 = {$: 'SubmitNumber1'};
+var $author$project$Starplot$SubmitNumber2 = {$: 'SubmitNumber2'};
+var $author$project$Starplot$starlength = 300;
 var $author$project$Starplot$calculateStarValue = F3(
 	function (smartphone, max, func) {
 		if (smartphone.$ === 'Just') {
@@ -12146,19 +12192,20 @@ var $author$project$Starplot$checkID = F2(
 			A2($elm$core$Maybe$withDefault, 'NaN', smartphone.id),
 			modelID);
 	});
-var $author$project$Starplot$findSmartphoneById = function (model) {
-	return $elm$core$List$head(
-		A2(
-			$elm$core$List$filter,
-			$author$project$Starplot$checkID(model.starplotOption.modelID),
-			model.data));
-};
+var $author$project$Starplot$findSmartphoneById = F2(
+	function (model, id) {
+		return $elm$core$List$head(
+			A2(
+				$elm$core$List$filter,
+				$author$project$Starplot$checkID(id),
+				model.data));
+	});
 var $elm$html$Html$h3 = _VirtualDom_node('h3');
 var $elm$html$Html$input = _VirtualDom_node('input');
 var $elm$html$Html$Attributes$placeholder = $elm$html$Html$Attributes$stringProperty('placeholder');
 var $avh4$elm_color$Color$black = A4($avh4$elm_color$Color$RgbaSpace, 0 / 255, 0 / 255, 0 / 255, 1.0);
 var $author$project$Starplot$midX = 450;
-var $author$project$Starplot$midY = 225;
+var $author$project$Starplot$midY = 360;
 var $author$project$Starplot$createAxis = function (axisPoint) {
 	return A2(
 		$gampleman$elm_visualization$Shape$line,
@@ -12232,7 +12279,7 @@ var $author$project$Starplot$createLabels = F3(
 				]));
 	});
 var $avh4$elm_color$Color$darkGray = A4($avh4$elm_color$Color$RgbaSpace, 186 / 255, 189 / 255, 182 / 255, 1.0);
-var $author$project$Starplot$h = 450;
+var $author$project$Starplot$h = 700;
 var $avh4$elm_color$Color$red = A4($avh4$elm_color$Color$RgbaSpace, 204 / 255, 0 / 255, 0 / 255, 1.0);
 var $elm_community$typed_svg$TypedSvg$Attributes$InPx$strokeWidth = function (value) {
 	return $elm_community$typed_svg$TypedSvg$Attributes$strokeWidth(
@@ -12383,7 +12430,7 @@ var $author$project$Starplot$starplot = F4(
 				[
 					A4($elm_community$typed_svg$TypedSvg$Attributes$viewBox, 0, 0, $author$project$Starplot$w, $author$project$Starplot$h),
 					$elm_community$typed_svg$TypedSvg$Attributes$width(
-					$elm_community$typed_svg$TypedSvg$Types$Percent(100)),
+					$elm_community$typed_svg$TypedSvg$Types$Percent(50)),
 					$elm_community$typed_svg$TypedSvg$Attributes$height(
 					$elm_community$typed_svg$TypedSvg$Types$Percent(100))
 				]),
@@ -12395,7 +12442,7 @@ var $author$project$Starplot$starplot = F4(
 						_List_Nil,
 						_List_fromArray(
 							[
-								$elm_community$typed_svg$TypedSvg$Core$text('\r\n            .valueLabel { display: none }\r\n            .label:hover .valueLabel { display: inline; }\r\n            .label:hover .starLabel { display: none; }\r\n            ')
+								$elm_community$typed_svg$TypedSvg$Core$text('\r\n            .valueLabel { display: none }\r\n            .starLabel {font-size:30px;}\r\n            .valueLabel {font-size:30px;}\r\n            .label:hover .valueLabel { display: inline; }\r\n            .label:hover .starLabel { display: none; }\r\n            ')
 							])),
 						A2(
 						$elm_community$typed_svg$TypedSvg$circle,
@@ -12459,42 +12506,97 @@ var $author$project$Starplot$starplot = F4(
 						starAxisMax))));
 	});
 var $author$project$Starplot$viewStarplot = function (model) {
-	var starplotViewHead = function (spd) {
-		return A2(
-			$elm$html$Html$div,
-			_List_Nil,
-			_List_fromArray(
-				[
-					A2(
-					$elm$html$Html$h3,
-					_List_Nil,
-					_List_fromArray(
-						[
-							$elm$html$Html$text(
-							('ID:' + A2($elm$core$Maybe$withDefault, 'NaN', spd.id)) + (' | ' + A2($elm$core$Maybe$withDefault, 'NaN', spd.model)))
-						])),
-					$elm$html$Html$text('ID auswaehlen: '),
-					A2(
-					$elm$html$Html$input,
-					_List_fromArray(
-						[
-							$elm$html$Html$Attributes$placeholder('Enter a number'),
-							$elm$html$Html$Events$onInput($author$project$Starplot$InputChange)
-						]),
-					_List_Nil),
-					A2(
-					$elm$html$Html$button,
-					_List_fromArray(
-						[
-							$elm$html$Html$Events$onClick($author$project$Starplot$SubmitNumber)
-						]),
-					_List_fromArray(
-						[
-							$elm$html$Html$text('Submit')
-						]))
-				]));
-	};
-	var starplotData = $author$project$Starplot$findSmartphoneById(model);
+	var starplotViewHead = F2(
+		function (spd1, spd2) {
+			return A2(
+				$elm$html$Html$div,
+				_List_Nil,
+				_List_fromArray(
+					[
+						function () {
+						if (spd1.$ === 'Just') {
+							var spd = spd1.a;
+							return A2(
+								$elm$html$Html$h3,
+								_List_Nil,
+								_List_fromArray(
+									[
+										$elm$html$Html$text(
+										('Starplot1 | ID:' + A2($elm$core$Maybe$withDefault, 'NaN', spd.id)) + (' | ' + A2($elm$core$Maybe$withDefault, 'NaN', spd.model)))
+									]));
+						} else {
+							return A2(
+								$elm$html$Html$h3,
+								_List_Nil,
+								_List_fromArray(
+									[
+										$elm$html$Html$text(('Starplot1 | ID:' + 'NaN') + (' | ' + 'NaN'))
+									]));
+						}
+					}(),
+						function () {
+						if (spd2.$ === 'Just') {
+							var spd = spd2.a;
+							return A2(
+								$elm$html$Html$h3,
+								_List_Nil,
+								_List_fromArray(
+									[
+										$elm$html$Html$text(
+										('Starplot2 | ID:' + A2($elm$core$Maybe$withDefault, 'NaN', spd.id)) + (' | ' + A2($elm$core$Maybe$withDefault, 'NaN', spd.model)))
+									]));
+						} else {
+							return A2(
+								$elm$html$Html$h3,
+								_List_Nil,
+								_List_fromArray(
+									[
+										$elm$html$Html$text(('Starplot2 | ID:' + 'NaN') + (' | ' + 'NaN'))
+									]));
+						}
+					}(),
+						$elm$html$Html$text('ID1 auswaehlen: '),
+						A2(
+						$elm$html$Html$input,
+						_List_fromArray(
+							[
+								$elm$html$Html$Attributes$placeholder('Enter a number'),
+								$elm$html$Html$Events$onInput($author$project$Starplot$InputChange1)
+							]),
+						_List_Nil),
+						A2(
+						$elm$html$Html$button,
+						_List_fromArray(
+							[
+								$elm$html$Html$Events$onClick($author$project$Starplot$SubmitNumber1)
+							]),
+						_List_fromArray(
+							[
+								$elm$html$Html$text('Submit for SP1')
+							])),
+						$elm$html$Html$text('  ID2 auswaehlen: '),
+						A2(
+						$elm$html$Html$input,
+						_List_fromArray(
+							[
+								$elm$html$Html$Attributes$placeholder('Enter a number'),
+								$elm$html$Html$Events$onInput($author$project$Starplot$InputChange2)
+							]),
+						_List_Nil),
+						A2(
+						$elm$html$Html$button,
+						_List_fromArray(
+							[
+								$elm$html$Html$Events$onClick($author$project$Starplot$SubmitNumber2)
+							]),
+						_List_fromArray(
+							[
+								$elm$html$Html$text('Submit for SP2')
+							]))
+					]));
+		});
+	var starplotData2 = A2($author$project$Starplot$findSmartphoneById, model, model.starplotOption.modelID2);
+	var starplotData1 = A2($author$project$Starplot$findSmartphoneById, model, model.starplotOption.modelID1);
 	var smartphoneFunctions = _List_fromArray(
 		[
 			function ($) {
@@ -12532,34 +12634,53 @@ var $author$project$Starplot$viewStarplot = function (model) {
 		$elm$core$List$map,
 		$author$project$Starplot$findMaxValue(model),
 		smartphoneFunctions);
-	var starValues = A3(
+	var starValues1 = A3(
 		$elm$core$List$map2,
-		$author$project$Starplot$calculateStarValue(starplotData),
+		$author$project$Starplot$calculateStarValue(starplotData1),
+		maxValues,
+		smartphoneFunctions);
+	var starValues2 = A3(
+		$elm$core$List$map2,
+		$author$project$Starplot$calculateStarValue(starplotData2),
 		maxValues,
 		smartphoneFunctions);
 	var labels = _List_fromArray(
 		['Price', 'Rating', 'NumCores', 'Processor Speed', 'Battery', 'Fast Charging', 'Memory', 'RAM', 'Screen Size', 'Refresh Rate']);
-	if (starplotData.$ === 'Just') {
-		var spd = starplotData.a;
-		return A2(
-			$elm$html$Html$div,
-			_List_Nil,
-			_List_fromArray(
-				[
-					starplotViewHead(spd),
-					A4($author$project$Starplot$starplot, spd, starValues, labels, smartphoneFunctions)
-				]));
-	} else {
-		return A2(
-			$elm$html$Html$div,
-			_List_Nil,
-			_List_fromArray(
-				[
-					starplotViewHead(
-					{id: $elm$core$Maybe$Nothing, model: $elm$core$Maybe$Nothing}),
-					$elm$html$Html$text('Error: Starplot kann nicht dargestellt werden, da zu dieser ID (' + (model.starplotOption.modelID + ') keine Data vorliegen Probiere Sie eine andere ID aus. Die ID muss eine Nummer sein.'))
-				]));
-	}
+	return A2(
+		$elm$html$Html$div,
+		_List_Nil,
+		_List_fromArray(
+			[
+				A2(starplotViewHead, starplotData1, starplotData2),
+				function () {
+				if (starplotData1.$ === 'Just') {
+					var spd1 = starplotData1.a;
+					return A4($author$project$Starplot$starplot, spd1, starValues1, labels, smartphoneFunctions);
+				} else {
+					return A2(
+						$elm$html$Html$div,
+						_List_Nil,
+						_List_fromArray(
+							[
+								$elm$html$Html$text('Error: Starplot1 kann nicht dargestellt werden, da zu dieser ID (' + (model.starplotOption.modelID1 + ') keine Data vorliegen Probiere Sie eine andere ID aus. Die ID muss eine Nummer sein.'))
+							]));
+				}
+			}(),
+				function () {
+				if (starplotData2.$ === 'Just') {
+					var spd2 = starplotData2.a;
+					return A4($author$project$Starplot$starplot, spd2, starValues2, labels, smartphoneFunctions);
+				} else {
+					return A2(
+						$elm$html$Html$div,
+						_List_Nil,
+						_List_fromArray(
+							[
+								$elm$html$Html$text('Error: Starplot2 kann nicht dargestellt werden, da zu dieser ID (' + (model.starplotOption.modelID2 + ') keine Data vorliegen Probiere Sie eine andere ID aus. Die ID muss eine Nummer sein.'))
+							]));
+				}
+			}()
+			]));
 };
 var $author$project$TreeView$ZoomMsg = function (a) {
 	return {$: 'ZoomMsg', a: a};
diff --git a/src/Main.elm b/src/Main.elm
index cf17dbafa7b87647df44d3b5d06bf2263e5d65d7..5502ff685e158b711de9fb9b0efae31ff9263491 100644
--- a/src/Main.elm
+++ b/src/Main.elm
@@ -60,8 +60,11 @@ init _ =
                 |> Zoom.scaleExtent 1 100
                 |> Zoom.translateExtent ( ( 0, 0 ), ( TreeView.w, TreeView.h ) )
         }
-        { modelID = "0"
-        , input = ""
+        { modelID1 = "0"
+        , modelID2 = "1019"
+        , input1 = ""
+        , input2 = ""
+        , nextChange = 2
         }
         { scatterPlot = True
         , parallelCoordinatesPlot = False
@@ -138,8 +141,26 @@ update msg model =
         ScatterplotMsg (SetStarPlot id) ->
             ( { model
                 | starplotOption =
-                    { modelID = id
-                    , input = model.starplotOption.input
+                    { modelID1 =
+                        if model.starplotOption.nextChange == 1 then
+                            id
+
+                        else
+                            model.starplotOption.modelID1
+                    , modelID2 =
+                        if model.starplotOption.nextChange == 2 then
+                            id
+
+                        else
+                            model.starplotOption.modelID2
+                    , input1 = model.starplotOption.input1
+                    , input2 = model.starplotOption.input2
+                    , nextChange =
+                        if model.starplotOption.nextChange == 1 then
+                            2
+
+                        else
+                            1
                     }
                 , plotVisible = { scatterPlot = False, parallelCoordinatesPlot = False, treeView = False, starPlot = True }
               }
@@ -165,8 +186,26 @@ update msg model =
         TreeViewMsg (SetStarPlotFromTree id) ->
             ( { model
                 | starplotOption =
-                    { modelID = id
-                    , input = model.starplotOption.input
+                    { modelID1 =
+                        if model.starplotOption.nextChange == 1 then
+                            id
+
+                        else
+                            model.starplotOption.modelID1
+                    , modelID2 =
+                        if model.starplotOption.nextChange == 2 then
+                            id
+
+                        else
+                            model.starplotOption.modelID2
+                    , input1 = model.starplotOption.input1
+                    , input2 = model.starplotOption.input2
+                    , nextChange =
+                        if model.starplotOption.nextChange == 1 then
+                            2
+
+                        else
+                            1
                     }
                 , plotVisible = { scatterPlot = False, parallelCoordinatesPlot = False, treeView = False, starPlot = True }
               }
@@ -181,21 +220,63 @@ update msg model =
             , Cmd.none
             )
 
-        StarplotMsg (InputChange id) ->
+        StarplotMsg (InputChange1 id) ->
             ( { model
                 | starplotOption =
-                    { modelID = model.starplotOption.modelID
-                    , input = id
+                    { modelID1 = model.starplotOption.modelID1
+                    , modelID2 = model.starplotOption.modelID2
+                    , input1 = id
+                    , input2 = model.starplotOption.input2
+                    , nextChange = model.starplotOption.nextChange
                     }
               }
             , Cmd.none
             )
 
-        StarplotMsg SubmitNumber ->
+        StarplotMsg (InputChange2 id) ->
             ( { model
                 | starplotOption =
-                    { modelID = model.starplotOption.input
-                    , input = model.starplotOption.input
+                    { modelID1 = model.starplotOption.modelID1
+                    , modelID2 = model.starplotOption.modelID2
+                    , input1 = model.starplotOption.input1
+                    , input2 = id
+                    , nextChange = model.starplotOption.nextChange
+                    }
+              }
+            , Cmd.none
+            )
+
+        StarplotMsg SubmitNumber1 ->
+            ( { model
+                | starplotOption =
+                    { modelID1 = model.starplotOption.input1
+                    , modelID2 = model.starplotOption.modelID2
+                    , input1 = model.starplotOption.input1
+                    , input2 = model.starplotOption.input2
+                    , nextChange =
+                        if model.starplotOption.nextChange == 1 then
+                            2
+
+                        else
+                            1
+                    }
+              }
+            , Cmd.none
+            )
+
+        StarplotMsg SubmitNumber2 ->
+            ( { model
+                | starplotOption =
+                    { modelID1 = model.starplotOption.modelID1
+                    , modelID2 = model.starplotOption.input2
+                    , input1 = model.starplotOption.input1
+                    , input2 = model.starplotOption.input2
+                    , nextChange =
+                        if model.starplotOption.nextChange == 1 then
+                            2
+
+                        else
+                            1
                     }
               }
             , Cmd.none
diff --git a/src/Model.elm b/src/Model.elm
index eba3607eed019b7b58688eab6e133fe776f4700a..6018ef540e0cd11d2d9aa6258e1838c6639325b7 100644
--- a/src/Model.elm
+++ b/src/Model.elm
@@ -41,6 +41,9 @@ type alias TreeOption =
 
 
 type alias StarPlotOption =
-    { modelID : String
-    , input : String
+    { modelID1 : String
+    , modelID2 : String
+    , input1 : String
+    , input2 : String
+    , nextChange : Int
     }
diff --git a/src/Starplot.elm b/src/Starplot.elm
index 5d4a51613738f998064d87e5fd34a768ba3f2400..15d41defebbe3c1e5c0c02c2a1b4636672a21657 100644
--- a/src/Starplot.elm
+++ b/src/Starplot.elm
@@ -24,7 +24,7 @@ w =
 
 h : Float
 h =
-    450
+    700
 
 
 midX : Float
@@ -34,23 +34,25 @@ midX =
 
 midY : Float
 midY =
-    225
+    360
 
 
 padding : Float
 padding =
-    30
+    50
 
 
 starlength : Float
 starlength =
-    180
+    300
 
 
 type Msg
     = Nothing1
-    | InputChange String
-    | SubmitNumber
+    | InputChange1 String
+    | SubmitNumber1
+    | InputChange2 String
+    | SubmitNumber2
 
 
 starplot : Smartphone -> List Float -> List String -> List (Smartphone -> Maybe Float) -> Svg msg
@@ -177,11 +179,13 @@ starplot smartphone starValues labels func =
     in
     svg
         [ viewBox 0 0 w h
-        , TypedSvg.Attributes.width <| TypedSvg.Types.Percent 100
+        , TypedSvg.Attributes.width <| TypedSvg.Types.Percent 50
         , TypedSvg.Attributes.height <| TypedSvg.Types.Percent 100
         ]
         ([ TypedSvg.style [] [ TypedSvg.Core.text """
             .valueLabel { display: none }
+            .starLabel {font-size:30px;}
+            .valueLabel {font-size:30px;}
             .label:hover .valueLabel { display: inline; }
             .label:hover .starLabel { display: none; }
             """ ]
@@ -253,10 +257,10 @@ createLabels label vlabel labelPoint =
 -}
 
 
-findSmartphoneById : Model -> Maybe Smartphone
-findSmartphoneById model =
+findSmartphoneById : Model -> String -> Maybe Smartphone
+findSmartphoneById model id =
     List.head <|
-        List.filter (checkID model.starplotOption.modelID) model.data
+        List.filter (checkID id) model.data
 
 
 findMaxValue : Model -> (Smartphone -> Maybe Float) -> Maybe Float
@@ -318,35 +322,64 @@ viewStarplot model =
             , "Refresh Rate"
             ]
 
-        starplotData =
-            findSmartphoneById model
+        starplotData1 =
+            findSmartphoneById model model.starplotOption.modelID1
+
+        starplotData2 =
+            findSmartphoneById model model.starplotOption.modelID2
 
         maxValues =
             List.map (findMaxValue model)
                 smartphoneFunctions
 
-        starValues =
-            List.map2 (calculateStarValue starplotData)
+        starValues1 =
+            List.map2 (calculateStarValue starplotData1)
                 maxValues
                 smartphoneFunctions
 
-        starplotViewHead spd =
-            div []
-                [ h3 [] [ text <| ("ID:" ++ Maybe.withDefault "NaN" spd.id) ++ (" | " ++ Maybe.withDefault "NaN" spd.model) ]
-                , text "ID auswaehlen: "
-                , input [ placeholder "Enter a number", onInput InputChange ] []
-                , button [ onClick SubmitNumber ] [ text "Submit" ]
-                ]
-    in
-    case starplotData of
-        Just spd ->
-            div []
-                [ starplotViewHead spd
-                , starplot spd starValues labels smartphoneFunctions
-                ]
+        starValues2 =
+            List.map2 (calculateStarValue starplotData2)
+                maxValues
+                smartphoneFunctions
 
-        Nothing ->
+        starplotViewHead spd1 spd2 =
             div []
-                [ starplotViewHead { id = Nothing, model = Nothing }
-                , text <| "Error: Starplot kann nicht dargestellt werden, da zu dieser ID (" ++ model.starplotOption.modelID ++ ") keine Data vorliegen Probiere Sie eine andere ID aus. Die ID muss eine Nummer sein."
+                [ case spd1 of
+                    Just spd ->
+                        h3 [] [ text <| ("Starplot1 | ID:" ++ Maybe.withDefault "NaN" spd.id) ++ (" | " ++ Maybe.withDefault "NaN" spd.model) ]
+
+                    Nothing ->
+                        h3 [] [ text <| ("Starplot1 | ID:" ++ "NaN") ++ (" | " ++ "NaN") ]
+                , case spd2 of
+                    Just spd ->
+                        h3 [] [ text <| ("Starplot2 | ID:" ++ Maybe.withDefault "NaN" spd.id) ++ (" | " ++ Maybe.withDefault "NaN" spd.model) ]
+
+                    Nothing ->
+                        h3 [] [ text <| ("Starplot2 | ID:" ++ "NaN") ++ (" | " ++ "NaN") ]
+                , text "ID1 auswaehlen: "
+                , input [ placeholder "Enter a number", onInput InputChange1 ] []
+                , button [ onClick SubmitNumber1 ] [ text "Submit for SP1" ]
+                , text " ID2 auswaehlen: "
+                , input [ placeholder "Enter a number", onInput InputChange2 ] []
+                , button [ onClick SubmitNumber2 ] [ text "Submit for SP2" ]
                 ]
+    in
+    div []
+        [ starplotViewHead starplotData1 starplotData2
+        , case starplotData1 of
+            Just spd1 ->
+                starplot spd1 starValues1 labels smartphoneFunctions
+
+            Nothing ->
+                div []
+                    [ text <| "Error: Starplot1 kann nicht dargestellt werden, da zu dieser ID (" ++ model.starplotOption.modelID1 ++ ") keine Data vorliegen Probiere Sie eine andere ID aus. Die ID muss eine Nummer sein."
+                    ]
+        , case starplotData2 of
+            Just spd2 ->
+                starplot spd2 starValues2 labels smartphoneFunctions
+
+            Nothing ->
+                div []
+                    [ text <| "Error: Starplot2 kann nicht dargestellt werden, da zu dieser ID (" ++ model.starplotOption.modelID2 ++ ") keine Data vorliegen Probiere Sie eine andere ID aus. Die ID muss eine Nummer sein."
+                    ]
+        ]