diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 03d62d167dc479a2cbe39237d40f9d6e78e67321..6949108dc4b88df199e7a3dda3d80c076e88361f 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -3,7 +3,9 @@
   <component name="ChangeListManager">
     <list default="true" id="b207c042-3fc9-4102-bf50-ee6c9b45c20d" name="Default" comment="">
       <change type="MODIFICATION" beforePath="$PROJECT_DIR$/.idea/workspace.xml" afterPath="$PROJECT_DIR$/.idea/workspace.xml" />
-      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/gemeinsamforschen/src/main/java/unipotsdam/gf/interfaces/IPeerAssessment.java" afterPath="$PROJECT_DIR$/gemeinsamforschen/src/main/java/unipotsdam/gf/interfaces/IPeerAssessment.java" />
+      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/Assessment.java" afterPath="$PROJECT_DIR$/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/Assessment.java" />
+      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/service/PeerAssessmentDummy.java" afterPath="$PROJECT_DIR$/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/service/PeerAssessmentDummy.java" />
+      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/view/QuizView.java" afterPath="$PROJECT_DIR$/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/view/QuizView.java" />
     </list>
     <ignored path="fltrail.iws" />
     <ignored path=".idea/workspace.xml" />
@@ -44,11 +46,29 @@
           </provider>
         </entry>
       </file>
-      <file leaf-file-name="projects.php" pinned="false" current-in-tab="true">
+      <file leaf-file-name="projects.php" pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/studentview/pages/projects.php">
           <provider selected="true" editor-type-id="text-editor">
             <state relative-caret-position="21">
-              <caret line="125" column="34" lean-forward="false" selection-start-line="125" selection-start-column="34" selection-end-line="125" selection-end-column="34" />
+              <caret line="111" column="34" lean-forward="false" selection-start-line="111" selection-start-column="34" selection-end-line="111" selection-end-column="34" />
+              <folding>
+                <marker date="1528377403200" expanded="true" signature="10969:10996" ph="..." />
+                <marker date="1528377403200" expanded="true" signature="10969:11019" ph="..." />
+                <marker date="1528377403200" expanded="true" signature="10969:11038" ph="..." />
+                <marker date="1528377403200" expanded="true" signature="10969:11053" ph="..." />
+                <marker date="1528377403200" expanded="true" signature="10969:11064" ph="..." />
+                <marker date="1528377403200" expanded="true" signature="10969:11071" ph="..." />
+                <marker date="1528377403200" expanded="true" signature="10969:11079" ph="..." />
+              </folding>
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file leaf-file-name="newProject.js" pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/studentview/assets/js/newProject.js">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="-651">
+              <caret line="20" column="7" lean-forward="false" selection-start-line="20" selection-start-column="7" selection-end-line="20" selection-end-column="7" />
               <folding />
             </state>
           </provider>
@@ -67,9 +87,19 @@
       <file leaf-file-name="overview.js" pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/studentview/assets/js/overview.js">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="1806">
-              <caret line="86" column="0" lean-forward="false" selection-start-line="86" selection-start-column="0" selection-end-line="86" selection-end-column="0" />
-              <folding />
+            <state relative-caret-position="1827">
+              <caret line="87" column="0" lean-forward="false" selection-start-line="87" selection-start-column="0" selection-end-line="87" selection-end-column="0" />
+              <folding>
+                <marker date="1528377403191" expanded="true" signature="2039:2586" ph="{...}" />
+                <marker date="1528377403191" expanded="true" signature="2116:2586" ph="{&quot;url&quot;: url...}" />
+                <marker date="1528377403191" expanded="true" signature="2253:2586" ph="{...}" />
+                <marker date="1528377403191" expanded="true" signature="2478:2586" ph="{...}" />
+                <marker date="1528377403191" expanded="true" signature="5783:6754" ph="{&quot;url&quot;: innerurl...}" />
+                <marker date="1528377403191" expanded="true" signature="5783:6758" ph="{...}" />
+                <marker date="1528377403191" expanded="true" signature="5932:6673" ph="{...}" />
+                <marker date="1528377403191" expanded="true" signature="6102:6663" ph="{...}" />
+                <marker date="1528377403191" expanded="true" signature="6709:6748" ph="{...}" />
+              </folding>
             </state>
           </provider>
         </entry>
@@ -124,13 +154,13 @@
         <option value="$PROJECT_DIR$/studentview/pages/deleteProject.php" />
         <option value="$PROJECT_DIR$/studentview/pages/enrollment.php" />
         <option value="$PROJECT_DIR$/studentview/pages/newproject.php" />
-        <option value="$PROJECT_DIR$/studentview/pages/projects.php" />
         <option value="$PROJECT_DIR$/studentview/register.php" />
         <option value="$PROJECT_DIR$/studentview/pages/preferences.php" />
         <option value="$PROJECT_DIR$/studentview/assets/js/config.js" />
         <option value="$PROJECT_DIR$/studentview/database/config.php" />
         <option value="$PROJECT_DIR$/studentview/assets/js/overview.js" />
         <option value="$PROJECT_DIR$/gemeinsamforschen/src/main/java/unipotsdam/gf/interfaces/ResearchReport.java" />
+        <option value="$PROJECT_DIR$/studentview/pages/projects.php" />
       </list>
     </option>
   </component>
@@ -266,8 +296,8 @@
           </PATH>
         </subPane>
       </pane>
-      <pane id="Scratches" />
       <pane id="Scope" />
+      <pane id="Scratches" />
       <pane id="PackagesPane" />
       <pane id="AndroidView" />
     </panes>
@@ -365,26 +395,28 @@
       <workItem from="1524585513713" duration="57000" />
       <workItem from="1528200793936" duration="888000" />
       <workItem from="1528354427057" duration="403000" />
+      <workItem from="1528809757337" duration="102000" />
     </task>
     <servers />
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="75305000" />
+    <option name="totallyTimeSpent" value="75407000" />
   </component>
   <component name="ToolWindowManager">
     <frame x="-9" y="-9" width="1938" height="1050" extended-state="6" />
+    <editor active="true" />
     <layout>
       <window_info id="Remote Host" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="11" side_tool="false" content_ui="tabs" />
-      <window_info id="Project" active="true" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.2125" sideWeight="0.5" order="2" side_tool="false" content_ui="combo" x="9" y="79" width="408" height="943" />
+      <window_info id="Project" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.2125" sideWeight="0.5" order="2" side_tool="false" content_ui="combo" x="9" y="79" width="408" height="943" />
       <window_info id="TODO" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="6" side_tool="false" content_ui="tabs" />
       <window_info id="Event Log" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.23455825" sideWeight="0.47734374" order="8" side_tool="true" content_ui="tabs" />
       <window_info id="Database" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.15729167" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
-      <window_info id="Version Control" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="10" side_tool="false" content_ui="tabs" />
       <window_info id="Run" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.35496482" sideWeight="0.71510416" order="2" side_tool="false" content_ui="tabs" />
+      <window_info id="Version Control" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="10" side_tool="false" content_ui="tabs" />
       <window_info id="Structure" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="4" side_tool="false" content_ui="tabs" />
       <window_info id="Terminal" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="9" side_tool="false" content_ui="tabs" />
-      <window_info id="Favorites" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="5" side_tool="true" content_ui="tabs" />
       <window_info id="Debug" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.331509" sideWeight="0.52265626" order="3" side_tool="false" content_ui="tabs" />
+      <window_info id="Favorites" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="5" side_tool="true" content_ui="tabs" />
       <window_info id="Cvs" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="4" side_tool="false" content_ui="tabs" />
       <window_info id="Palette" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="0" side_tool="false" content_ui="tabs" />
       <window_info id="Message" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="0" side_tool="false" content_ui="tabs" />
@@ -582,13 +614,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/studentview/assets/js/newProject.js">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="0">
-          <caret line="92" column="40" lean-forward="false" selection-start-line="92" selection-start-column="40" selection-end-line="92" selection-end-column="40" />
-        </state>
-      </provider>
-    </entry>
     <entry file="dbDummy://dbtable:/fc3764cf/14340c2c-ac4b-492f-ac4f-18c0853598a8/fltrail.projects" />
     <entry file="file://$PROJECT_DIR$/studentview/assets/js/createPreferences.js">
       <provider selected="true" editor-type-id="text-editor">
@@ -711,16 +736,42 @@
     </entry>
     <entry file="file://$PROJECT_DIR$/studentview/assets/js/overview.js">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="1806">
-          <caret line="86" column="0" lean-forward="false" selection-start-line="86" selection-start-column="0" selection-end-line="86" selection-end-column="0" />
-          <folding />
+        <state relative-caret-position="1827">
+          <caret line="87" column="0" lean-forward="false" selection-start-line="87" selection-start-column="0" selection-end-line="87" selection-end-column="0" />
+          <folding>
+            <marker date="1528377403191" expanded="true" signature="2039:2586" ph="{...}" />
+            <marker date="1528377403191" expanded="true" signature="2116:2586" ph="{&quot;url&quot;: url...}" />
+            <marker date="1528377403191" expanded="true" signature="2253:2586" ph="{...}" />
+            <marker date="1528377403191" expanded="true" signature="2478:2586" ph="{...}" />
+            <marker date="1528377403191" expanded="true" signature="5783:6754" ph="{&quot;url&quot;: innerurl...}" />
+            <marker date="1528377403191" expanded="true" signature="5783:6758" ph="{...}" />
+            <marker date="1528377403191" expanded="true" signature="5932:6673" ph="{...}" />
+            <marker date="1528377403191" expanded="true" signature="6102:6663" ph="{...}" />
+            <marker date="1528377403191" expanded="true" signature="6709:6748" ph="{...}" />
+          </folding>
         </state>
       </provider>
     </entry>
     <entry file="file://$PROJECT_DIR$/studentview/pages/projects.php">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="21">
-          <caret line="125" column="34" lean-forward="false" selection-start-line="125" selection-start-column="34" selection-end-line="125" selection-end-column="34" />
+          <caret line="111" column="34" lean-forward="false" selection-start-line="111" selection-start-column="34" selection-end-line="111" selection-end-column="34" />
+          <folding>
+            <marker date="1528377403200" expanded="true" signature="10969:10996" ph="..." />
+            <marker date="1528377403200" expanded="true" signature="10969:11019" ph="..." />
+            <marker date="1528377403200" expanded="true" signature="10969:11038" ph="..." />
+            <marker date="1528377403200" expanded="true" signature="10969:11053" ph="..." />
+            <marker date="1528377403200" expanded="true" signature="10969:11064" ph="..." />
+            <marker date="1528377403200" expanded="true" signature="10969:11071" ph="..." />
+            <marker date="1528377403200" expanded="true" signature="10969:11079" ph="..." />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/studentview/assets/js/newProject.js">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="-651">
+          <caret line="20" column="7" lean-forward="false" selection-start-line="20" selection-start-column="7" selection-end-line="20" selection-end-column="7" />
           <folding />
         </state>
       </provider>
diff --git a/gemeinsamforschen/src/main/java/unipotsdam/gf/interfaces/IPeerAssessment.java b/gemeinsamforschen/src/main/java/unipotsdam/gf/interfaces/IPeerAssessment.java
index 3c56086717309771fc7ca2c1b69bca9349348737..a39dbe55732d56e831d78fa6500bf1a10e3abc41 100644
--- a/gemeinsamforschen/src/main/java/unipotsdam/gf/interfaces/IPeerAssessment.java
+++ b/gemeinsamforschen/src/main/java/unipotsdam/gf/interfaces/IPeerAssessment.java
@@ -1,9 +1,6 @@
 package unipotsdam.gf.interfaces;
 
-import unipotsdam.gf.modules.assessment.controller.model.Assessment;
-import unipotsdam.gf.modules.assessment.controller.model.Performance;
-import unipotsdam.gf.modules.assessment.controller.model.Quiz;
-import unipotsdam.gf.modules.assessment.controller.model.StudentIdentifier;
+import unipotsdam.gf.modules.assessment.controller.model.*;
 
 /**
  * Created by dehne on 18.05.2018.
@@ -29,19 +26,18 @@ public interface IPeerAssessment {
     /**
      * writes a quiz-question into the DB so other students can benefit from another's insights.
      *
-     * @param student
-     * @param quiz
+     * @param studentAndQuiz
      */
-    void createQuiz(StudentIdentifier student, Quiz quiz);
+    void createQuiz(StudentAndQuiz studentAndQuiz);
 
     /**
      * calculate grades for everyone in a list.
      * either it will be overwritten by choice of co- or peer-assessment or it gets a parameter which specifies it.
      *
-     * @param performanceOfAllStudents
-     * @return
+     *
+     * @param totalPerformance @return
      */
-    int[] calculateAssessment(Performance[] performanceOfAllStudents); // calculates marks for every performance and writes it to an array
+    Grades calculateAssessment(TotalPerformance totalPerformance); // calculates marks for every performance and writes it to an array
 
     /**
      * calculates the mean value of all assessments in a project.
diff --git a/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/Assessment.java b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/Assessment.java
index 4fc531131d7ed72ff78727e96fc10db45a82d2f4..6cbfbf46dc891c0532292c68bdf5b098f46dedf7 100644
--- a/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/Assessment.java
+++ b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/Assessment.java
@@ -1,5 +1,9 @@
 package unipotsdam.gf.modules.assessment.controller.model;
 
+import javax.xml.bind.annotation.XmlRootElement;
+
+@XmlRootElement
+
 public class Assessment {
     private StudentIdentifier student;
     private Performance performance;
@@ -9,6 +13,8 @@ public class Assessment {
         this.performance = performance;
     }
 
+    public Assessment(){}
+
     public StudentIdentifier getStudent() {
         return student;
     }
diff --git a/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/Grades.java b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/Grades.java
new file mode 100644
index 0000000000000000000000000000000000000000..98f4b3479c266d8e1d54efb0dda18bf9a4ab65dd
--- /dev/null
+++ b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/Grades.java
@@ -0,0 +1,27 @@
+package unipotsdam.gf.modules.assessment.controller.model;
+
+public class Grades {
+    private Grading[] grading;
+
+    public Grades(){}
+
+    public Grades(Grading[] grading) {
+        this.grading = grading;
+    }
+
+    public Grading[] getGrading() {
+        return grading;
+    }
+
+    public void setGrading(Grading[] grading) {
+        this.grading = grading;
+    }
+
+    @Override
+    public String toString() {
+        return "Grades{" +
+                "grading=" + grading +
+                '}';
+    }
+
+}
diff --git a/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/Grading.java b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/Grading.java
new file mode 100644
index 0000000000000000000000000000000000000000..73913ebb40f6e10c1e1c664f6402fe87375cb2ed
--- /dev/null
+++ b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/Grading.java
@@ -0,0 +1,38 @@
+package unipotsdam.gf.modules.assessment.controller.model;
+
+public class Grading {
+    private StudentIdentifier studentIdentifier;
+    private int grade;
+
+    public Grading(){}
+
+    public Grading(StudentIdentifier studentIdentifier, int grade) {
+        this.studentIdentifier = studentIdentifier;
+        this.grade = grade;
+    }
+
+    public int getGrade() {
+        return grade;
+    }
+
+    public void setGrade(int grade) {
+        this.grade = grade;
+    }
+
+    public StudentIdentifier getStudentIdentifier() {
+        return studentIdentifier;
+    }
+
+    public void setStudentIdentifier(StudentIdentifier studentIdentifier) {
+        this.studentIdentifier = studentIdentifier;
+    }
+
+    @Override
+    public String toString() {
+        return "Grading{" +
+                "studentIdentifier=" + studentIdentifier +
+                ", grade=" + grade +
+                '}';
+    }
+
+}
diff --git a/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/StudentAndQuiz.java b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/StudentAndQuiz.java
new file mode 100644
index 0000000000000000000000000000000000000000..4f5f5c0976bffc1bc51602c7c1cc886f294ac1d5
--- /dev/null
+++ b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/StudentAndQuiz.java
@@ -0,0 +1,38 @@
+package unipotsdam.gf.modules.assessment.controller.model;
+
+public class StudentAndQuiz {
+    @Override
+    public String toString() {
+        return "StudentAndQuiz{" +
+                "studentIdentifier=" + studentIdentifier +
+                ", quiz=" + quiz +
+                '}';
+    }
+
+    public StudentAndQuiz(){}
+
+    private StudentIdentifier studentIdentifier;
+
+    public StudentIdentifier getStudentIdentifier() {
+        return studentIdentifier;
+    }
+
+    public void setStudentIdentifier(StudentIdentifier studentIdentifier) {
+        this.studentIdentifier = studentIdentifier;
+    }
+
+    public Quiz getQuiz() {
+        return quiz;
+    }
+
+    public void setQuiz(Quiz quiz) {
+        this.quiz = quiz;
+    }
+
+    private Quiz quiz;
+
+    public StudentAndQuiz(StudentIdentifier studentIdentifier, Quiz quiz) {
+        this.studentIdentifier = studentIdentifier;
+        this.quiz = quiz;
+    }
+}
diff --git a/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/TotalPerformance.java b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/TotalPerformance.java
new file mode 100644
index 0000000000000000000000000000000000000000..b5e01faa2db263539823d5e3b01354add282a35b
--- /dev/null
+++ b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/model/TotalPerformance.java
@@ -0,0 +1,42 @@
+package unipotsdam.gf.modules.assessment.controller.model;
+
+import java.util.Arrays;
+
+public class TotalPerformance {
+
+    private StudentIdentifier[] studentIdentifier;
+    private Performance[] performances;
+
+    public TotalPerformance(StudentIdentifier[] studentIdentifier, Performance[] performances) {
+        this.studentIdentifier = studentIdentifier;
+        this.performances = performances;
+    }
+
+    public TotalPerformance() {
+    }
+
+    public Performance[] getPerformances() {
+        return performances;
+    }
+
+    public void setPerformances(Performance[] performances) {
+        this.performances = performances;
+    }
+
+    public StudentIdentifier[] getStudentIdentifier() {
+        return studentIdentifier;
+    }
+
+    public void setStudentIdentifier(StudentIdentifier[] studentIdentifier) {
+        this.studentIdentifier = studentIdentifier;
+    }
+
+    @Override
+    public String toString() {
+        return "TotalPerformance{" +
+                "studentIdentifier=" + studentIdentifier +
+                ", performances=" + Arrays.toString(performances) +
+                '}';
+    }
+
+}
diff --git a/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/service/FBAssessement.java b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/service/FBAssessement.java
index 64f2b331345df5a1c54768eadc04faf215943f80..e7f98ab5bab6ca87ab671b45432cb469ebc35407 100644
--- a/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/service/FBAssessement.java
+++ b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/service/FBAssessement.java
@@ -1,9 +1,6 @@
 package unipotsdam.gf.modules.assessment.controller.service;
 
-import unipotsdam.gf.modules.assessment.controller.model.Assessment;
-import unipotsdam.gf.modules.assessment.controller.model.Performance;
-import unipotsdam.gf.modules.assessment.controller.model.Quiz;
-import unipotsdam.gf.modules.assessment.controller.model.StudentIdentifier;
+import unipotsdam.gf.modules.assessment.controller.model.*;
 
 /**
  * Created by dehne on 18.05.2018.
@@ -21,19 +18,15 @@ public class FBAssessement extends AssessmentDAO {
     }
 
     @Override
-    public void createQuiz(StudentIdentifier student, Quiz quiz) {
+    public void createQuiz(StudentAndQuiz studentAndQuiz) {
 
     }
 
 
     @Override
-    public int[] calculateAssessment(Performance[] performanceOfAllStudents){ // calculates marks for every performance and writes it to an array
-        int[] dummy = new int[4];
-        dummy[0]=1;
-        dummy[1]=4;
-        dummy[2]=3;
-        dummy[3]=2;
-        return dummy;
+    public Grades calculateAssessment(TotalPerformance totalPerformance){ // calculates marks for every performance and writes it to an array
+        Grades grades = new Grades();
+        return grades;
     }
 
     public void createQuiz(StudentIdentifier student, String question, String[] answers){  //writes a new question into the DB
diff --git a/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/service/PeerAssessment.java b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/service/PeerAssessment.java
index 0e960479aa619742de1277ef4ae34a9d333e9638..be25ff2f59dd2f6315d081e6e5fb3a636c395fca 100644
--- a/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/service/PeerAssessment.java
+++ b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/service/PeerAssessment.java
@@ -1,10 +1,7 @@
 package unipotsdam.gf.modules.assessment.controller.service;
 
 import unipotsdam.gf.interfaces.IPeerAssessment;
-import unipotsdam.gf.modules.assessment.controller.model.Assessment;
-import unipotsdam.gf.modules.assessment.controller.model.Performance;
-import unipotsdam.gf.modules.assessment.controller.model.Quiz;
-import unipotsdam.gf.modules.assessment.controller.model.StudentIdentifier;
+import unipotsdam.gf.modules.assessment.controller.model.*;
 
 public class PeerAssessment implements IPeerAssessment {
     @Override
@@ -23,13 +20,14 @@ public class PeerAssessment implements IPeerAssessment {
     }
 
     @Override
-    public void createQuiz(StudentIdentifier student, Quiz quiz) {
+    public void createQuiz(StudentAndQuiz studentAndQuiz) {
 
     }
 
     @Override
-    public int[] calculateAssessment(Performance[] performanceOfAllStudents) {
-        return new int[0];
+    public Grades calculateAssessment(TotalPerformance totalPerformance) {
+        Grades grades = new Grades();
+        return grades;
     }
 
     @Override
diff --git a/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/service/PeerAssessmentDummy.java b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/service/PeerAssessmentDummy.java
index 4df8e22307b8e1c8fa4915faf8d74156a00d4a15..be139b0a9bc858458486fd8f77cbd9b6594dfe30 100644
--- a/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/service/PeerAssessmentDummy.java
+++ b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/service/PeerAssessmentDummy.java
@@ -1,10 +1,7 @@
 package unipotsdam.gf.modules.assessment.controller.service;
 
 import unipotsdam.gf.interfaces.IPeerAssessment;
-import unipotsdam.gf.modules.assessment.controller.model.Assessment;
-import unipotsdam.gf.modules.assessment.controller.model.Performance;
-import unipotsdam.gf.modules.assessment.controller.model.Quiz;
-import unipotsdam.gf.modules.assessment.controller.model.StudentIdentifier;
+import unipotsdam.gf.modules.assessment.controller.model.*;
 
 public class PeerAssessmentDummy implements IPeerAssessment {
     @Override
@@ -27,17 +24,39 @@ public class PeerAssessmentDummy implements IPeerAssessment {
 
     @Override
     public Assessment getAssessmentDataFromDB(StudentIdentifier student) {
-        return null;
+        int[] quizAnswer = {1,1,1,0,0,0,1,0,0,1,1};
+        int[] workRating = {1,5,3,4,1,5,5};
+        Performance performance = new Performance(quizAnswer, "what a nice guy", workRating);
+        Assessment assessment = new Assessment(student, performance);
+        return assessment;
     }
 
     @Override
-    public void createQuiz(StudentIdentifier student, Quiz quiz) {
+    public void createQuiz(StudentAndQuiz studentAndQuiz) {
 
     }
 
     @Override
-    public int[] calculateAssessment(Performance[] performanceOfAllStudents) {
-        return new int[0];
+    public Grades calculateAssessment(TotalPerformance totalPerformance) {
+        Performance[] performanceOfAllStudents = totalPerformance.getPerformances();
+        StudentIdentifier[] allStudents = totalPerformance.getStudentIdentifier();
+        int[] allAssessements = new int[performanceOfAllStudents.length] ;
+        Grades grades = new Grades();
+        Grading[] grading = new Grading[performanceOfAllStudents.length];
+
+        for (int i=0; i< performanceOfAllStudents.length;i++) {
+            for (int j=0; j< performanceOfAllStudents[i].getQuizAnswer().length;j++) {
+                allAssessements[i] += performanceOfAllStudents[i].getQuizAnswer()[j];
+            }
+            allAssessements[i] = allAssessements[i]/performanceOfAllStudents[i].getQuizAnswer().length;
+        }
+        for (int i=0; i<performanceOfAllStudents.length; i++){
+            grading[i].setStudentIdentifier(allStudents[i]);
+            grading[i].setGrade(allAssessements[i]);
+        }
+
+        grades.setGrading(grading);
+        return grades;
     }
 
     @Override
diff --git a/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/view/QuizView.java b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/view/QuizView.java
index 414d444cc7e4bb887f287da32a8030ef3bf5b024..5c4886da8336ca3f132c7fa304471bb0ba865b86 100644
--- a/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/view/QuizView.java
+++ b/gemeinsamforschen/src/main/java/unipotsdam/gf/modules/assessment/controller/view/QuizView.java
@@ -1,10 +1,7 @@
 package unipotsdam.gf.modules.assessment.controller.view;
 
 import unipotsdam.gf.interfaces.IPeerAssessment;
-import unipotsdam.gf.modules.assessment.controller.model.Assessment;
-import unipotsdam.gf.modules.assessment.controller.model.Performance;
-import unipotsdam.gf.modules.assessment.controller.model.Quiz;
-import unipotsdam.gf.modules.assessment.controller.model.StudentIdentifier;
+import unipotsdam.gf.modules.assessment.controller.model.*;
 import unipotsdam.gf.modules.assessment.controller.service.PeerAssessmentDummy;
 
 import javax.ws.rs.*;
@@ -30,27 +27,45 @@ public class QuizView implements IPeerAssessment {
         peer.addAssessmentDataToDB(assessment);
     }
 
-    @GET
-    @Produces(MediaType.TEXT_PLAIN)
-    @Path("/project/{projectId}/student/{studentId}")
+
     @Override
-    public Assessment getAssessmentDataFromDB(StudentIdentifier student){//@PathParam("projectId") String projectId,@PathParam("studentId") String studentId){
-    //StudentIdentifier student = new StudentIdentifier(projectId, studentId);
+    public Assessment getAssessmentDataFromDB(StudentIdentifier student){
         return peer.getAssessmentDataFromDB(student);
     }
 
-    @Override
-    public void createQuiz(StudentIdentifier student, Quiz quiz) {
+    @GET
+    @Produces(MediaType.APPLICATION_JSON)
+    @Path("/project/{projectId}/student/{studentId}")
+    public Assessment getAssessmentDataFromDB(@PathParam("projectId") String projectId,@PathParam("studentId") String studentId){
+        StudentIdentifier student = new StudentIdentifier(projectId, studentId);
+        return getAssessmentDataFromDB(student);
+    }
+
 
+    @POST
+    @Produces(MediaType.APPLICATION_JSON)
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Path("/quiz")
+    @Override
+    public void createQuiz(StudentAndQuiz studentAndQuiz) {
+        peer.createQuiz(studentAndQuiz);
     }
 
+    @POST
+    @Produces(MediaType.APPLICATION_JSON)
+    @Consumes(MediaType.APPLICATION_JSON)
+    @Path("/calculate")
     @Override
-    public int[] calculateAssessment(Performance[] performanceOfAllStudents) {
-        return new int[0];
+    public Grades calculateAssessment(TotalPerformance totalPerformance) { //todo: maybe the return variable is the problem why it doesnt work.
+
+        return peer.calculateAssessment(totalPerformance);
     }
 
+    @GET
+    @Produces(MediaType.APPLICATION_JSON)
+    @Path("/mean/project/{projectId}")
     @Override
-    public int meanOfAssessement(String ProjectId) {
-        return 0;
+    public int meanOfAssessement(@PathParam("projectId") String ProjectId) {
+        return peer.meanOfAssessement(ProjectId);
     }
 }
diff --git a/gemeinsamforschen/src/main/webapp/assets/js/assessmentCalculator.js b/gemeinsamforschen/src/main/webapp/assets/js/assessmentCalculator.js
new file mode 100644
index 0000000000000000000000000000000000000000..b138e592ca67c426c4bd3e3c45b502e6ffee77e0
--- /dev/null
+++ b/gemeinsamforschen/src/main/webapp/assets/js/assessmentCalculator.js
@@ -0,0 +1,48 @@
+$(document).ready(function(){
+    $("#calculateNow").on("click", function(){
+        var data = [{
+            StudentIdentifier: {
+                projectId: 'gemeinsamForschn',
+                student: 'Max*i Mustermann*ine'
+            },
+            Performance: {
+                quizAnswers: [1,0,1,1,0,0,0,0,1],
+                feedback: 'ganz feiner Student war das',
+                workRating: [4,3,5,1,1,5,3]
+            }
+        },{
+            StudentIdentifier: {
+                projectId: 'gemeinsamForschn',
+                student: 'John Doe'
+            },
+            Performance: {
+                quizAnswers: [1,0,1,1,0,1,1,1,1],
+                feedback: 'ganz feiner Student war das',
+                workRating: [2,3,2,3,1,2,3]
+            }
+        },{
+            StudentIdentifier: {
+                projectId: 'gemeinsamForschn',
+                student: 'Harri Gründler'
+            },
+            Performance: {
+                quizAnswers: [0,0,0,0,0,0,0,0,0],
+                feedback: 'ganz feiner Student war das',
+                workRating: [1,1,1,1,1,1,1]
+            }
+        }
+        ];
+        $.ajax({
+            url: "http://localhost:8080/gemeinsamforschen/rest/assessments/calculate",
+            type: 'POST',
+            contentType: 'application/json; charset=utf-8',
+            data: data,
+            success: function(data){
+                alert(data);
+            },
+            error: function(a,b,c){
+                alert('some error'+a);
+            }
+        })
+    })
+});
\ No newline at end of file
diff --git a/gemeinsamforschen/src/main/webapp/pages/assessmentCalculator.html b/gemeinsamforschen/src/main/webapp/pages/assessmentCalculator.html
new file mode 100644
index 0000000000000000000000000000000000000000..13fc7b1effa2f202442f2c8d7570167368c4b77f
--- /dev/null
+++ b/gemeinsamforschen/src/main/webapp/pages/assessmentCalculator.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>assessment calculator</title>
+    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
+    <script src="../assets/js/assessmentCalculator.js"></script>
+</head>
+<body>
+<button id="calculateNow">click mich</button>
+</body>
+</html>
\ No newline at end of file