diff --git a/src/main/java/org/olat/course/assessment/ui/tool/IdentityListCourseNodeController.java b/src/main/java/org/olat/course/assessment/ui/tool/IdentityListCourseNodeController.java
index 26dc189640769fb5e0dabcd85232f33b1ec39535..d4edfa5628eda8489b69abc864d69bc1210be717 100644
--- a/src/main/java/org/olat/course/assessment/ui/tool/IdentityListCourseNodeController.java
+++ b/src/main/java/org/olat/course/assessment/ui/tool/IdentityListCourseNodeController.java
@@ -160,11 +160,11 @@ public class IdentityListCourseNodeController extends FormBasicController
 	private ContactFormController contactCtrl;
 	
 	@Autowired
-	private DB dbInstance;
+	protected DB dbInstance;
 	@Autowired
 	private UserManager userManager;
 	@Autowired
-	private BaseSecurity securityManager;
+	protected BaseSecurity securityManager;
 	@Autowired
 	private GradingService gradingService;
 	@Autowired
@@ -987,14 +987,14 @@ public class IdentityListCourseNodeController extends FormBasicController
 			ICourse course = CourseFactory.loadCourse(courseEntry);
 			for(AssessedIdentityElementRow row:rows) {
 				Identity assessedIdentity = securityManager.loadIdentityByKey(row.getIdentityKey());
-				doSetDone(assessedIdentity, courseNode, course);
+				doSetStatus(assessedIdentity, AssessmentEntryStatus.done, courseNode, course);
 				dbInstance.commitAndCloseSession();
 			}
 			loadModel(ureq);
 		}
 	}
 	
-	protected void doSetDone(Identity assessedIdentity, CourseNode courseNode, ICourse course) {
+	protected void doSetStatus(Identity assessedIdentity, AssessmentEntryStatus status, CourseNode courseNode, ICourse course) {
 		Roles roles = securityManager.getRoles(assessedIdentity);
 		
 		IdentityEnvironment identityEnv = new IdentityEnvironment(assessedIdentity, roles);
@@ -1003,11 +1003,10 @@ public class IdentityListCourseNodeController extends FormBasicController
 
 		ScoreEvaluation scoreEval = courseAssessmentService.getAssessmentEvaluation(courseNode, assessedUserCourseEnv);
 		ScoreEvaluation doneEval = new ScoreEvaluation(scoreEval.getScore(), scoreEval.getPassed(),
-				AssessmentEntryStatus.done, null, scoreEval.getCurrentRunCompletion(),
+				status, null, scoreEval.getCurrentRunCompletion(),
 				scoreEval.getCurrentRunStatus(), scoreEval.getAssessmentID());
 		courseAssessmentService.updateScoreEvaluation(courseNode, doneEval, assessedUserCourseEnv,
 				getIdentity(), false, Role.coach);
-		
 	}
 	
 	private void doUpdateCompletion(Double completion, AssessmentRunStatus status, Long assessedIdentityKey) {
diff --git a/src/main/java/org/olat/course/nodes/gta/ui/GTAIdentityListCourseNodeController.java b/src/main/java/org/olat/course/nodes/gta/ui/GTAIdentityListCourseNodeController.java
index 45003a2fc389dfb666c4f834d4e718728ed5f8e1..096e1549a542e91d845325ef87d8766dbe4a81a1 100644
--- a/src/main/java/org/olat/course/nodes/gta/ui/GTAIdentityListCourseNodeController.java
+++ b/src/main/java/org/olat/course/nodes/gta/ui/GTAIdentityListCourseNodeController.java
@@ -56,6 +56,7 @@ import org.olat.group.BusinessGroup;
 import org.olat.modules.ModuleConfiguration;
 import org.olat.modules.assessment.AssessmentToolOptions;
 import org.olat.modules.assessment.Role;
+import org.olat.modules.assessment.model.AssessmentEntryStatus;
 import org.olat.modules.assessment.ui.AssessedIdentityElementRow;
 import org.olat.modules.assessment.ui.AssessmentToolContainer;
 import org.olat.modules.assessment.ui.AssessmentToolSecurityCallback;
@@ -218,12 +219,12 @@ public class GTAIdentityListCourseNodeController extends IdentityListCourseNodeC
 	}
 
 	@Override
-	protected void doSetDone(Identity assessedIdentity, CourseNode assessableCourseNode, ICourse course) {
-		super.doSetDone(assessedIdentity, assessableCourseNode, course);
+	protected void doSetStatus(Identity assessedIdentity, AssessmentEntryStatus status, CourseNode assessableCourseNode, ICourse course) {
+		super.doSetStatus(assessedIdentity, status, assessableCourseNode, course);
 		
 		TaskList taskList = gtaManager.getTaskList(getCourseRepositoryEntry(), (GTACourseNode)assessableCourseNode);
 		Task task = gtaManager.getTask(assessedIdentity, taskList);
-		if(task != null) {
+		if(task != null && status == AssessmentEntryStatus.done) {
 			gtaManager.updateTask(task, TaskProcess.graded, (GTACourseNode)assessableCourseNode, false, getIdentity(), Role.coach);
 		}
 	}
diff --git a/src/main/java/org/olat/course/nodes/iq/ConfirmReopenAssessmentEntriesController.java b/src/main/java/org/olat/course/nodes/iq/ConfirmReopenAssessmentEntriesController.java
new file mode 100644
index 0000000000000000000000000000000000000000..e55c39aae8490d16bf0e185b9e0ea44363af4e1e
--- /dev/null
+++ b/src/main/java/org/olat/course/nodes/iq/ConfirmReopenAssessmentEntriesController.java
@@ -0,0 +1,91 @@
+package org.olat.course.nodes.iq;
+
+import org.olat.core.gui.UserRequest;
+import org.olat.core.gui.components.form.flexible.FormItem;
+import org.olat.core.gui.components.form.flexible.FormItemContainer;
+import org.olat.core.gui.components.form.flexible.elements.FormLink;
+import org.olat.core.gui.components.form.flexible.impl.FormBasicController;
+import org.olat.core.gui.components.form.flexible.impl.FormEvent;
+import org.olat.core.gui.components.form.flexible.impl.FormLayoutContainer;
+import org.olat.core.gui.components.link.Link;
+import org.olat.core.gui.control.Controller;
+import org.olat.core.gui.control.Event;
+import org.olat.core.gui.control.WindowControl;
+import org.olat.core.util.Util;
+import org.olat.ims.qti21.ui.ConfirmReopenAssessmentEntryController;
+
+/**
+ * 
+ * Initial date: 28 juil. 2020<br>
+ * @author srosse, stephane.rosse@frentix.com, http://www.frentix.com
+ *
+ */
+public class ConfirmReopenAssessmentEntriesController extends FormBasicController {
+	
+	private FormLink readOnlyButton;
+	
+	private Object userObject;
+	private final long numOfAssessmentEntriesDone;
+	
+	/**
+	 * Confirm reopen of the assessment entries .
+	 * 
+	 * @param ureq The user request
+	 * @param wControl The window control
+	 */
+	public ConfirmReopenAssessmentEntriesController(UserRequest ureq, WindowControl wControl, long numOfAssessmentEntriesDone) {
+		super(ureq, wControl, "confirm_reopen_assessments", Util
+				.createPackageTranslator(ConfirmReopenAssessmentEntryController.class, ureq.getLocale()));
+		this.numOfAssessmentEntriesDone = numOfAssessmentEntriesDone;
+		initForm(ureq);
+	}
+
+	public Object getUserObject() {
+		return userObject;
+	}
+
+	public void setUserObject(Object userObject) {
+		this.userObject = userObject;
+	}
+
+	@Override
+	protected void initForm(FormItemContainer formLayout, Controller listener, UserRequest ureq) {
+		if(formLayout instanceof FormLayoutContainer) {
+			FormLayoutContainer layoutCont = (FormLayoutContainer)formLayout;
+			String msg;
+			if(numOfAssessmentEntriesDone == 1) {
+				msg = translate("reopen.assessment.text");
+			} else {
+				msg = translate("reopen.assessments.text", new String[] { Long.toString(numOfAssessmentEntriesDone) });
+			}
+			layoutCont.contextPut("msg", msg);
+		}
+		
+		uifactory.addFormCancelButton("cancel", formLayout, ureq, getWindowControl());
+		uifactory.addFormSubmitButton("reopen.assessment", formLayout);
+		readOnlyButton = uifactory.addFormLink("correction.readonly", formLayout, Link.BUTTON);
+	}
+
+	@Override
+	protected void doDispose() {
+		//
+	}
+
+	@Override
+	protected void formInnerEvent(UserRequest ureq, FormItem source, FormEvent event) {
+		if(readOnlyButton == source) {
+			fireEvent(ureq, Event.DONE_EVENT);
+		}
+		super.formInnerEvent(ureq, source, event);
+	}
+
+	@Override
+	protected void formOK(UserRequest ureq) {
+		fireEvent(ureq, Event.CHANGED_EVENT);
+	}
+
+	@Override
+	protected void formCancelled(UserRequest ureq) {
+		fireEvent(ureq, Event.CANCELLED_EVENT);
+	}
+}
diff --git a/src/main/java/org/olat/course/nodes/iq/IQIdentityListCourseNodeController.java b/src/main/java/org/olat/course/nodes/iq/IQIdentityListCourseNodeController.java
index a9ac1306653b2e38b3467dabb470e3a441443300..ee13d1c46a4b614976e46b6ee47d8993c0b300e2 100644
--- a/src/main/java/org/olat/course/nodes/iq/IQIdentityListCourseNodeController.java
+++ b/src/main/java/org/olat/course/nodes/iq/IQIdentityListCourseNodeController.java
@@ -28,6 +28,8 @@ import java.util.Date;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
 
 import org.olat.basesecurity.GroupRoles;
 import org.olat.basesecurity.IdentityRef;
@@ -49,6 +51,8 @@ import org.olat.core.gui.control.WindowControl;
 import org.olat.core.gui.control.generic.closablewrapper.CloseableModalController;
 import org.olat.core.gui.media.MediaResource;
 import org.olat.core.id.Identity;
+import org.olat.course.CourseFactory;
+import org.olat.course.ICourse;
 import org.olat.course.archiver.ScoreAccountingHelper;
 import org.olat.course.assessment.AssessmentHelper;
 import org.olat.course.assessment.CourseAssessmentService;
@@ -118,6 +122,7 @@ public class IQIdentityListCourseNodeController extends IdentityListCourseNodeCo
 	private ConfirmExtraTimeController extraTimeCtrl;
 	private ValidationXmlSignatureController validationCtrl;
 	private CorrectionOverviewController correctionIdentitiesCtrl;
+	private ConfirmReopenAssessmentEntriesController reopenForCorrectionCtrl;
 	
 	private boolean modelDirty = false;
 
@@ -340,6 +345,16 @@ public class IQIdentityListCourseNodeController extends IdentityListCourseNodeCo
 			} else if(event == Event.DONE_EVENT) {
 				loadModel(ureq);
 			}
+		} else if(reopenForCorrectionCtrl == source) {
+			CorrectionOverviewController correctionCtrl = (CorrectionOverviewController)reopenForCorrectionCtrl.getUserObject();
+			cmc.deactivate();
+			cleanUp();
+			if(event == Event.CHANGED_EVENT) {
+				doReopenAssessmentEntries(correctionCtrl);
+				doOpenCorrection(correctionCtrl);
+			} else if(event == Event.DONE_EVENT) {
+				doOpenCorrection(correctionCtrl);
+			}
 		}
 		super.event(ureq, source, event);
 	}
@@ -367,10 +382,12 @@ public class IQIdentityListCourseNodeController extends IdentityListCourseNodeCo
 	
 	@Override
 	protected void cleanUp() {
+		removeAsListenerAndDispose(reopenForCorrectionCtrl);
 		removeAsListenerAndDispose(retrieveConfirmationCtr);
 		removeAsListenerAndDispose(validationCtrl);
 		removeAsListenerAndDispose(extraTimeCtrl);
 		removeAsListenerAndDispose(resetDataCtrl);
+		reopenForCorrectionCtrl = null;
 		retrieveConfirmationCtr = null;
 		validationCtrl = null;
 		extraTimeCtrl = null;
@@ -431,14 +448,51 @@ public class IQIdentityListCourseNodeController extends IdentityListCourseNodeCo
 	private void doStartCorrection(UserRequest ureq) {
 		AssessmentToolOptions asOptions = getOptions();
 
-		correctionIdentitiesCtrl = new CorrectionOverviewController(ureq, getWindowControl(), stackPanel,
+		CorrectionOverviewController correctionCtrl = new CorrectionOverviewController(ureq, getWindowControl(), stackPanel,
 				getCourseEnvironment(), asOptions, (IQTESTCourseNode)courseNode);
-		if(correctionIdentitiesCtrl.getNumberOfAssessedIdentities() == 0) {
+		long numOfAssessmentEntriesDone = usersTableModel.getObjects().stream()
+				.filter(row -> row.getAssessmentStatus() == AssessmentEntryStatus.done)
+				.count();
+		if(correctionCtrl.getNumberOfAssessedIdentities() == 0) {
 			showWarning("grade.nobody");
-			correctionIdentitiesCtrl = null;
+		} else if(numOfAssessmentEntriesDone > 0) {
+			doReopenForCorrection(ureq, correctionCtrl, numOfAssessmentEntriesDone);
 		} else {
-			listenTo(correctionIdentitiesCtrl);
-			stackPanel.pushController(translate("correction.test.title"), correctionIdentitiesCtrl);
+			doOpenCorrection(correctionCtrl);
+		}
+	}
+	
+	private void doOpenCorrection(CorrectionOverviewController correctionCtrl) {
+		correctionIdentitiesCtrl = correctionCtrl;
+		listenTo(correctionIdentitiesCtrl);
+		stackPanel.pushController(translate("correction.test.title"), correctionIdentitiesCtrl);
+	}
+	
+	private void doReopenForCorrection(UserRequest ureq, CorrectionOverviewController correctionCtrl, long numOfAssessmentEntriesDone) {
+		if(guardModalController(reopenForCorrectionCtrl)) return;
+		
+		reopenForCorrectionCtrl = new ConfirmReopenAssessmentEntriesController(ureq, getWindowControl(), numOfAssessmentEntriesDone);
+		reopenForCorrectionCtrl.setUserObject(correctionCtrl);
+		listenTo(reopenForCorrectionCtrl);
+		
+		cmc = new CloseableModalController(getWindowControl(), "close", reopenForCorrectionCtrl.getInitialComponent(),
+				true, translate("reopen.assessments.title"));
+		cmc.activate();
+		listenTo(cmc);
+	}
+	
+	private void doReopenAssessmentEntries(CorrectionOverviewController correctionCtrl) {
+		List<Identity> assessedIdentities = correctionCtrl.getAssessedIdentities();
+		Set<Long> assessedIdentitiesKeys = assessedIdentities.stream()
+				.map(Identity::getKey)
+				.collect(Collectors.toSet());
+		List<AssessedIdentityElementRow> rows = usersTableModel.getObjects();
+		ICourse course = CourseFactory.loadCourse(courseEntry);
+		for(AssessedIdentityElementRow row:rows) {
+			if(row.getAssessmentStatus() == AssessmentEntryStatus.done && assessedIdentitiesKeys.contains(row.getIdentityKey())) {
+				Identity assessedIdentity = securityManager.loadIdentityByKey(row.getIdentityKey());
+				doSetStatus(assessedIdentity, AssessmentEntryStatus.inReview, courseNode, course);
+				dbInstance.commitAndCloseSession();			}
 		}
 	}
 	
diff --git a/src/main/java/org/olat/course/nodes/iq/QTI21IdentityListCourseNodeToolsController.java b/src/main/java/org/olat/course/nodes/iq/QTI21IdentityListCourseNodeToolsController.java
index 3ab1ce192cc5359a9d8d7428f4afbca88aa21f6e..55e25c7eec57f30f7b27202fbefeea05564c700b 100644
--- a/src/main/java/org/olat/course/nodes/iq/QTI21IdentityListCourseNodeToolsController.java
+++ b/src/main/java/org/olat/course/nodes/iq/QTI21IdentityListCourseNodeToolsController.java
@@ -47,6 +47,7 @@ import org.olat.ims.qti21.model.jpa.AssessmentTestSessionStatistics;
 import org.olat.ims.qti21.model.xml.ManifestBuilder;
 import org.olat.ims.qti21.ui.AssessmentTestDisplayController;
 import org.olat.ims.qti21.ui.AssessmentTestSessionComparator;
+import org.olat.ims.qti21.ui.ConfirmReopenAssessmentEntryController;
 import org.olat.ims.qti21.ui.QTI21ResetDataController;
 import org.olat.ims.qti21.ui.QTI21RetrieveTestsController;
 import org.olat.ims.qti21.ui.assessment.CorrectionIdentityAssessmentItemListController;
@@ -82,6 +83,7 @@ public class QTI21IdentityListCourseNodeToolsController extends AbstractToolsCon
 	private ConfirmExtraTimeController extraTimeCtrl;
 	private QTI21RetrieveTestsController retrieveConfirmationCtr;
 	private CorrectionIdentityAssessmentItemListController correctionCtrl;
+	private ConfirmReopenAssessmentEntryController reopenForCorrectionCtrl;
 	
 	private RepositoryEntry testEntry;
 	private RepositoryEntry courseEntry;
@@ -166,7 +168,7 @@ public class QTI21IdentityListCourseNodeToolsController extends AbstractToolsCon
 	protected void event(UserRequest ureq, Component source, Event event) {
 		if(correctionLink == source) {
 			fireEvent(ureq, Event.CLOSE_EVENT);
-			doOpenCorrection(ureq);
+			doCorrection(ureq);
 		} else if(pullTestLink == source) {
 			fireEvent(ureq, Event.CLOSE_EVENT);
 			doConfirmPullSession(ureq, lastSession);
@@ -203,6 +205,10 @@ public class QTI21IdentityListCourseNodeToolsController extends AbstractToolsCon
 			cmc.deactivate();
 			cleanUp();
 			fireAlteredEvent(ureq, event);
+		} else if(reopenForCorrectionCtrl == source) {
+			cmc.deactivate();
+			cleanUp();
+			doOpenCorrection(ureq);
 		} else if(cmc == source) {
 			cleanUp();
 			fireEvent(ureq, Event.CHANGED_EVENT);
@@ -221,17 +227,42 @@ public class QTI21IdentityListCourseNodeToolsController extends AbstractToolsCon
 	}
 	
 	private void cleanUp() {
+		removeAsListenerAndDispose(reopenForCorrectionCtrl);
 		removeAsListenerAndDispose(correctionCtrl);
 		removeAsListenerAndDispose(extraTimeCtrl);
 		removeAsListenerAndDispose(resetDataCtrl);
 		removeAsListenerAndDispose(cmc);
+		reopenForCorrectionCtrl = null;
 		correctionCtrl = null;
 		extraTimeCtrl = null;
 		resetDataCtrl = null;
 		cmc = null;
 	}
 	
+	private void doCorrection(UserRequest ureq) {
+		boolean assessmentEntryDone = isAssessementEntryDone();
+		if(assessmentEntryDone) {
+			doReopenForCorrection(ureq);
+		} else {
+			doOpenCorrection(ureq);
+		}	
+	}
+	
+	private void doReopenForCorrection(UserRequest ureq) {
+		if(guardModalController(reopenForCorrectionCtrl)) return;
+		
+		reopenForCorrectionCtrl = new ConfirmReopenAssessmentEntryController(ureq, getWindowControl(),
+				assessedUserCourseEnv, (IQTESTCourseNode)courseNode, null);
+		listenTo(reopenForCorrectionCtrl);
+		
+		cmc = new CloseableModalController(getWindowControl(), "close", reopenForCorrectionCtrl.getInitialComponent(),
+				true, translate("reopen.assessment.title"));
+		cmc.activate();
+		listenTo(cmc);
+	}
+	
 	private void doOpenCorrection(UserRequest ureq) {
+		boolean assessmentEntryDone = isAssessementEntryDone();
 		File unzippedDirRoot = FileResourceManager.getInstance().unzipFileResource(testEntry.getOlatResource());
 		ResolvedAssessmentTest resolvedAssessmentTest = qtiService.loadAndResolveAssessmentTest(unzippedDirRoot, false, false);
 		ManifestBuilder manifestBuilder = ManifestBuilder.read(new File(unzippedDirRoot, "imsmanifest.xml"));
@@ -242,8 +273,8 @@ public class QTI21IdentityListCourseNodeToolsController extends AbstractToolsCon
 		testSessionStates.put(assessedIdentity, testSessionState);
 		CorrectionOverviewModel model = new CorrectionOverviewModel(courseEntry, testCourseNode, testEntry,
 				resolvedAssessmentTest, manifestBuilder, lastSessionMap, testSessionStates);
-		boolean readOnly = isAssessementEntryDone();
-		correctionCtrl = new CorrectionIdentityAssessmentItemListController(ureq, getWindowControl(), stackPanel, model, assessedIdentity, readOnly);
+		
+		correctionCtrl = new CorrectionIdentityAssessmentItemListController(ureq, getWindowControl(), stackPanel, model, assessedIdentity, assessmentEntryDone);
 		listenTo(correctionCtrl);
 		stackPanel.pushController(translate("tool.correction"), correctionCtrl);
 	}
diff --git a/src/main/java/org/olat/course/nodes/iq/_content/confirm_reopen_assessments.html b/src/main/java/org/olat/course/nodes/iq/_content/confirm_reopen_assessments.html
new file mode 100644
index 0000000000000000000000000000000000000000..0cd82652d95a867088a188d4a620f6ce59640c16
--- /dev/null
+++ b/src/main/java/org/olat/course/nodes/iq/_content/confirm_reopen_assessments.html
@@ -0,0 +1,10 @@
+<p>$msg</p>
+<div class="o_button_group">
+	$r.render("cancel")
+	#if($r.available("reopen.assessment")) 
+		$r.render("reopen.assessment")
+	#end
+	#if($r.available("correction.readonly")) 
+		$r.render("correction.readonly")
+	#end
+</div>
\ No newline at end of file
diff --git a/src/main/java/org/olat/course/nodes/iq/_i18n/LocalStrings_de.properties b/src/main/java/org/olat/course/nodes/iq/_i18n/LocalStrings_de.properties
index 527bd3b57337a6d2ea872f1649c49f1797e7b085..26101293a8dc276b4479f473c160dc5666f5961a 100644
--- a/src/main/java/org/olat/course/nodes/iq/_i18n/LocalStrings_de.properties
+++ b/src/main/java/org/olat/course/nodes/iq/_i18n/LocalStrings_de.properties
@@ -165,6 +165,9 @@ qti.form.test.date.confirm=W\u00E4hrend dem Testzeitraum kann der Test gestartet
 qti.form.test.date.help=$\:qti.form.test.date.confirm
 qti.form.test.title=Test
 reopen=Erneut starten
+reopen.assessments.title=Abgeschlossene Bewertungen wieder\u00F6ffnen
+reopen.assessment.text=Es gibt eine Bewertung die schon abgeschlossen ist. Wollen Sie sie wieder\u00F6ffnen um Tests zu korrigieren?
+reopen.assessments.text=Es gibt {0} Bewertungen die schon abgeschlossen sind. Wollen Sie sie wieder\u00F6ffnen um Tests zu korrigieren?
 reopen.explanation=Dieser Test wurde beendet. Sie k\u00F6nnen den Test erneut starten. Der Testteilnehmende kann den Test dann dort weiterf\u00FChren, wo er aufgeh\u00F6rt hat. Falls der Test auf 1 Versuch beschr\u00E4nkt ist, m\u00FCssen au�erdem die Versuche zur\u00FCckgesetzt werden, damit der Testteilnehmende den Test weiterf\u00FChren kann.
 reopen.test=Beendeten Test wieder \u00F6ffnen
 replace.wizard.information.empty.results=<b>HINWEIS\: Dieser Test/Fragebogen wurde bereits von {0} Teilnehmer(n) begonnen\!</b> Die bisherigen Ergebnisse dieser Nutzer werden mit Klick auf "Fertigstellen" im n\u00E4chsten Schritt gel\u00F6scht.<br /><br /><b>Publizieren Sie schnellstm\u00F6glich Ihren Kurs\!</b> Erst nach dem Publizieren des Kurses k\u00F6nnen die Kursteilnehmer den neu zugeordneten Test/Fragebogen starten und entsprechende Ergebnisse gespeichert werden.
diff --git a/src/main/java/org/olat/course/nodes/iq/_i18n/LocalStrings_en.properties b/src/main/java/org/olat/course/nodes/iq/_i18n/LocalStrings_en.properties
index dda05daef0a8f2530d558ef06b68e41c7091e845..22ff6ac97319de47b3edeb9d496c0b428d303348 100644
--- a/src/main/java/org/olat/course/nodes/iq/_i18n/LocalStrings_en.properties
+++ b/src/main/java/org/olat/course/nodes/iq/_i18n/LocalStrings_en.properties
@@ -166,6 +166,9 @@ qti.form.test.date.confirm=During the test  period the test can be started. As s
 qti.form.test.date.help=$\:qti.form.test.date.confirm
 qti.form.test.title=Test
 reopen=Start again
+reopen.assessments.title=Reopen closed assessments
+reopen.assessment.text=There is an already closed assessment. Do you want to reopen it to correct the tests?
+reopen.assessments.text=There are already closed {0} assessments. Do you want to reopen them to correct the tests?
 reopen.explanation=This test has been finished. You can restart the test. The test participant continues the test where he left it. If the test is limited to 1 attempt, the number of attempts must be reset so the test participants can continue the test.
 reopen.test=Reopen finished test
 replace.wizard.information.empty.results=<b>NOTE\: This test/questionnaire has already been launched by {0} participant(s)\!</b> All user results already existing will be deleted by clicking next on "Finish".<br></br><b>Please publish your course as soon as possible\!</b> Only after publishing will course participants be able to launch your newly assigned test/questionnaire; any results can then be saved accordingly.
diff --git a/src/main/java/org/olat/ims/qti21/ui/ConfirmReopenAssessmentEntryController.java b/src/main/java/org/olat/ims/qti21/ui/ConfirmReopenAssessmentEntryController.java
new file mode 100644
index 0000000000000000000000000000000000000000..c73f98c61812e2fc5e81911723ca7e4e3615c51f
--- /dev/null
+++ b/src/main/java/org/olat/ims/qti21/ui/ConfirmReopenAssessmentEntryController.java
@@ -0,0 +1,144 @@
+package org.olat.ims.qti21.ui;
+
+import org.olat.core.gui.UserRequest;
+import org.olat.core.gui.components.form.flexible.FormItem;
+import org.olat.core.gui.components.form.flexible.FormItemContainer;
+import org.olat.core.gui.components.form.flexible.elements.FormLink;
+import org.olat.core.gui.components.form.flexible.impl.FormBasicController;
+import org.olat.core.gui.components.form.flexible.impl.FormEvent;
+import org.olat.core.gui.components.link.Link;
+import org.olat.core.gui.control.Controller;
+import org.olat.core.gui.control.Event;
+import org.olat.core.gui.control.WindowControl;
+import org.olat.course.assessment.CourseAssessmentService;
+import org.olat.course.nodes.IQTESTCourseNode;
+import org.olat.course.run.scoring.ScoreEvaluation;
+import org.olat.course.run.userview.UserCourseEnvironment;
+import org.olat.ims.qti21.AssessmentTestSession;
+import org.olat.modules.assessment.AssessmentEntry;
+import org.olat.modules.assessment.AssessmentService;
+import org.olat.modules.assessment.Role;
+import org.olat.modules.assessment.model.AssessmentEntryStatus;
+import org.olat.repository.RepositoryEntry;
+import org.springframework.beans.factory.annotation.Autowired;
+
+/**
+ * 
+ * Initial date: 28 juil. 2020<br>
+ * @author srosse, stephane.rosse@frentix.com, http://www.frentix.com
+ *
+ */
+public class ConfirmReopenAssessmentEntryController extends FormBasicController {
+	
+	private FormLink readOnlyButton;
+	
+	private Object userObject;
+	private final IQTESTCourseNode courseNode;
+	private final AssessmentTestSession session;
+	private final UserCourseEnvironment assessedUserCourseEnv;
+	
+	@Autowired
+	private AssessmentService assessmentService;
+	@Autowired
+	private CourseAssessmentService courseAssessmentService;
+	
+	/**
+	 * Confirm reopen of the assessment in a course element.
+	 * 
+	 * @param ureq The user request
+	 * @param wControl The window control
+	 * @param assessedUserCourseEnv The user course environment of the assessed identity
+	 * @param courseNode The course node
+	 * @param session The assessment test session
+	 */
+	public ConfirmReopenAssessmentEntryController(UserRequest ureq, WindowControl wControl,
+			UserCourseEnvironment assessedUserCourseEnv, IQTESTCourseNode courseNode,
+			AssessmentTestSession session) {
+		super(ureq, wControl, "confirm_reopen_assessment");
+		this.assessedUserCourseEnv = assessedUserCourseEnv;
+		this.courseNode = courseNode;
+		this.session = session;
+		initForm(ureq);
+	}
+	
+	/**
+	 * Confirm reopen of the assessment of test done within a test
+	 * repository entry.
+	 * 
+	 * @param ureq The user request
+	 * @param wControl The window control
+	 * @param session The assessment test session
+	 */
+	public ConfirmReopenAssessmentEntryController(UserRequest ureq, WindowControl wControl,
+			AssessmentTestSession session) {
+		super(ureq, wControl, "confirm_reopen_assessment");
+		assessedUserCourseEnv = null;
+		courseNode = null;
+		this.session = session;
+		initForm(ureq);
+	}
+	
+	public AssessmentTestSession getAssessmentTestSession() {
+		return session;
+	}
+
+	public Object getUserObject() {
+		return userObject;
+	}
+
+	public void setUserObject(Object userObject) {
+		this.userObject = userObject;
+	}
+
+	@Override
+	protected void initForm(FormItemContainer formLayout, Controller listener, UserRequest ureq) {
+		
+		uifactory.addFormCancelButton("cancel", formLayout, ureq, getWindowControl());
+		uifactory.addFormSubmitButton("reopen.assessment", formLayout);
+		readOnlyButton = uifactory.addFormLink("correction.readonly", formLayout, Link.BUTTON);
+	}
+
+	@Override
+	protected void doDispose() {
+		//
+	}
+
+	@Override
+	protected void formInnerEvent(UserRequest ureq, FormItem source, FormEvent event) {
+		if(readOnlyButton == source) {
+			fireEvent(ureq, Event.DONE_EVENT);
+		}
+		super.formInnerEvent(ureq, source, event);
+	}
+
+	@Override
+	protected void formOK(UserRequest ureq) {
+		doReopen();
+		fireEvent(ureq, Event.CHANGED_EVENT);
+	}
+
+	@Override
+	protected void formCancelled(UserRequest ureq) {
+		fireEvent(ureq, Event.CANCELLED_EVENT);
+	}
+	
+	private void doReopen() {
+		if(courseNode != null) {
+			ScoreEvaluation scoreEval = assessedUserCourseEnv.getScoreAccounting().evalCourseNode(courseNode);
+			if (scoreEval != null) {
+				ScoreEvaluation reopenedEval = new ScoreEvaluation(scoreEval.getScore(), scoreEval.getPassed(),
+						AssessmentEntryStatus.inReview, scoreEval.getUserVisible(), scoreEval.getCurrentRunCompletion(),
+						scoreEval.getCurrentRunStatus(), scoreEval.getAssessmentID());
+				courseAssessmentService.updateScoreEvaluation(courseNode, reopenedEval, assessedUserCourseEnv,
+						getIdentity(), false, Role.coach);
+			}
+		} else if(session != null) {
+			RepositoryEntry testEntry = session.getTestEntry();
+			AssessmentEntry assessmentEntry = assessmentService.loadAssessmentEntry(session.getIdentity(), testEntry, null, testEntry);
+			if (assessmentEntry != null) {
+				assessmentEntry.setAssessmentStatus(AssessmentEntryStatus.inReview);
+				assessmentService.updateAssessmentEntry(assessmentEntry);
+			}
+		}
+	}
+}
diff --git a/src/main/java/org/olat/ims/qti21/ui/QTI21AssessmentDetailsController.java b/src/main/java/org/olat/ims/qti21/ui/QTI21AssessmentDetailsController.java
index 9c7a4af6a4961cce0f7686bd2f16110170fcb885..13726e65851ed647ebaad90c387a1bcedbf40e44 100644
--- a/src/main/java/org/olat/ims/qti21/ui/QTI21AssessmentDetailsController.java
+++ b/src/main/java/org/olat/ims/qti21/ui/QTI21AssessmentDetailsController.java
@@ -143,6 +143,7 @@ public class QTI21AssessmentDetailsController extends FormBasicController {
 	private DialogBoxController retrieveConfirmationCtr;
 	private CloseableCalloutWindowController calloutCtrl;
 	private CorrectionIdentityAssessmentItemListController correctionCtrl;
+	private ConfirmReopenAssessmentEntryController reopenForCorrectionCtrl;
 	private ConfirmAssessmentTestSessionInvalidationController invalidateConfirmationCtr;
 	private ConfirmAssessmentTestSessionRevalidationController revalidateConfirmationCtr;
 
@@ -376,6 +377,15 @@ public class QTI21AssessmentDetailsController extends FormBasicController {
 			}
 			cmc.deactivate();
 			cleanUp();
+		} else if(reopenForCorrectionCtrl == source) {
+			cmc.deactivate();
+			AssessmentTestSession session = reopenForCorrectionCtrl.getAssessmentTestSession();
+			cleanUp();
+			if(event == Event.DONE_EVENT || event == Event.CHANGED_EVENT) {
+				fireEvent(ureq, Event.CHANGED_EVENT);
+				AssessmentTestSession testSession = qtiService.getAssessmentTestSession(session.getKey());
+				doOpenCorrection(ureq, testSession);
+			}
 		} else if(toolsCtrl == source) {
 			if(event == Event.DONE_EVENT) {
 				calloutCtrl.deactivate();
@@ -389,6 +399,7 @@ public class QTI21AssessmentDetailsController extends FormBasicController {
 		removeAsListenerAndDispose(invalidateConfirmationCtr);
 		removeAsListenerAndDispose(revalidateConfirmationCtr);
 		removeAsListenerAndDispose(retrieveConfirmationCtr);
+		removeAsListenerAndDispose(reopenForCorrectionCtrl);
 		removeAsListenerAndDispose(correctionCtrl);
 		removeAsListenerAndDispose(resetToolCtrl);
 		removeAsListenerAndDispose(calloutCtrl);
@@ -398,6 +409,7 @@ public class QTI21AssessmentDetailsController extends FormBasicController {
 		invalidateConfirmationCtr = null;
 		revalidateConfirmationCtr = null;
 		retrieveConfirmationCtr = null;
+		reopenForCorrectionCtrl = null;
 		correctionCtrl = null;
 		resetToolCtrl = null;
 		calloutCtrl = null;
@@ -443,6 +455,16 @@ public class QTI21AssessmentDetailsController extends FormBasicController {
 	}
 
 	private void doCorrection(UserRequest ureq, AssessmentTestSession session) {
+		boolean assessmentEntryDone = isAssessmentEntryDone();
+		if(assessmentEntryDone && !readOnly) {
+			confirmReopenAssessment(ureq, session);
+		} else {
+			doOpenCorrection(ureq, session);
+		}
+	}
+	
+	private void doOpenCorrection(UserRequest ureq, AssessmentTestSession session) {
+		boolean assessmentEntryDone = isAssessmentEntryDone();
 		RepositoryEntry testEntry = session.getTestEntry();
 		File unzippedDirRoot = FileResourceManager.getInstance().unzipFileResource(testEntry.getOlatResource());
 		ResolvedAssessmentTest resolvedAssessmentTest = qtiService.loadAndResolveAssessmentTest(unzippedDirRoot, false, false);
@@ -454,11 +476,11 @@ public class QTI21AssessmentDetailsController extends FormBasicController {
 			lastSessions.put(assessedIdentity, session);
 			Map<Identity, TestSessionState> testSessionStates = new HashMap<>();
 			testSessionStates.put(assessedIdentity, testSessionState);
-			boolean assessmentEntryDone = isCorrectionReadOnly();
+			boolean correctionReadOnly = readOnly || assessmentEntryDone;
 			CorrectionOverviewModel model = new CorrectionOverviewModel(entry, courseNode, testEntry,
 					resolvedAssessmentTest, manifestBuilder, lastSessions, testSessionStates);
 			correctionCtrl = new CorrectionIdentityAssessmentItemListController(ureq, getWindowControl(), stackPanel,
-					model, assessedIdentity, assessmentEntryDone);
+					model, assessedIdentity, correctionReadOnly);
 			listenTo(correctionCtrl);
 			stackPanel.pushController(translate("correction"), correctionCtrl);
 		} catch(Exception e) {
@@ -467,9 +489,20 @@ public class QTI21AssessmentDetailsController extends FormBasicController {
 		}
 	}
 	
-	private boolean isCorrectionReadOnly() {
-		if(readOnly) return true;
+	private void confirmReopenAssessment(UserRequest ureq, AssessmentTestSession session) {
+		if(guardModalController(reopenForCorrectionCtrl)) return;
 		
+		reopenForCorrectionCtrl = new ConfirmReopenAssessmentEntryController(ureq, getWindowControl(),
+				assessedUserCourseEnv, courseNode, session);
+		listenTo(reopenForCorrectionCtrl);
+		
+		cmc = new CloseableModalController(getWindowControl(), "close", reopenForCorrectionCtrl.getInitialComponent(),
+				true, translate("reopen.assessment.title"));
+		cmc.activate();
+		listenTo(cmc);
+	}
+	
+	private boolean isAssessmentEntryDone() {
 		if(assessedUserCourseEnv != null) {
 			AssessmentEvaluation eval = assessedUserCourseEnv.getScoreAccounting().getScoreEvaluation(courseNode);
 			return eval != null && eval.getAssessmentStatus() == AssessmentEntryStatus.done;
diff --git a/src/main/java/org/olat/ims/qti21/ui/_content/confirm_reopen_assessment.html b/src/main/java/org/olat/ims/qti21/ui/_content/confirm_reopen_assessment.html
new file mode 100644
index 0000000000000000000000000000000000000000..13beba566959a8d9a4d4834b9276d1083f60a7ae
--- /dev/null
+++ b/src/main/java/org/olat/ims/qti21/ui/_content/confirm_reopen_assessment.html
@@ -0,0 +1,10 @@
+<p>$r.translate("reopen.assessment.text")</p>
+<div class="o_button_group">
+	$r.render("cancel")
+	#if($r.available("reopen.assessment")) 
+		$r.render("reopen.assessment")
+	#end
+	#if($r.available("correction.readonly")) 
+		$r.render("correction.readonly")
+	#end
+</div>
\ No newline at end of file
diff --git a/src/main/java/org/olat/ims/qti21/ui/_i18n/LocalStrings_de.properties b/src/main/java/org/olat/ims/qti21/ui/_i18n/LocalStrings_de.properties
index 05ce41e31d1efeada125d023bd510f404f55dc96..b3bbb6a2a875f3c2cd7a62a0d1698add554720a3 100644
--- a/src/main/java/org/olat/ims/qti21/ui/_i18n/LocalStrings_de.properties
+++ b/src/main/java/org/olat/ims/qti21/ui/_i18n/LocalStrings_de.properties
@@ -80,6 +80,7 @@ confirm.suspend.test=$org.olat.modules.iq\:confirmSuspend
 confirmation=Best\u00E4tigung
 correct.solution=Korrekte L\u00F6sung
 correction=Korrigieren
+correction.readonly=Korrektur nur sehen
 correction.workflow=Korrekturworkflow
 correction.workflow.anonymous=Anonym
 countdown.running=Zeitlimit {1} Sekunden\: nur <strong>{0} Sekunden \u00FCbrigs</strong>
@@ -193,6 +194,9 @@ question.progress.noMaxScore=$org.olat.modules.iq\:noMaxScore
 question.progress.score=$org.olat.modules.iq\:actualPoints
 question.title=Frage {0}
 questions=Anzahl Fragen im Test
+reopen.assessment=Bewertung wiederöffnen
+reopen.assessment.title=Abgeschlossene Bewertung wieder\u00F6ffnen
+reopen.assessment.text=Diese Bewertung ist schon abgeschlossen. Wollen Sie sie wieder\u00F6ffnen um den Test zu korrigieren?
 reset.data=Daten zur\u00FCcksetzen
 reset.test.data.acknowledge=Ich verstehe, dass die Daten endg\u00FCltig gel\u00F6scht werden.
 reset.test.data.text=Wollen Sie wirklich alle Daten von dem Test zur\u00FCcksetzen? Die Resultate von <strong>{0} Benutzern</strong> werden definitiv gel\u00F6scht.
diff --git a/src/main/java/org/olat/ims/qti21/ui/_i18n/LocalStrings_en.properties b/src/main/java/org/olat/ims/qti21/ui/_i18n/LocalStrings_en.properties
index bae8ed6dd36fad24cbb3e0570165d4393570c17d..239e9658f01374716d32c56a5cdb8d75fa22fd8a 100644
--- a/src/main/java/org/olat/ims/qti21/ui/_i18n/LocalStrings_en.properties
+++ b/src/main/java/org/olat/ims/qti21/ui/_i18n/LocalStrings_en.properties
@@ -80,6 +80,7 @@ confirm.suspend.test=$org.olat.modules.iq\:confirmSuspend
 confirmation=Confirmation
 correct.solution=Correct solution
 correction=Grade
+correction.readonly=See correction read only
 correction.workflow=Correction workflow
 correction.workflow.anonymous=Anonymous
 countdown.running=Time limit {1} seconds\: <strong>{0} seconds left</strong>
@@ -193,6 +194,9 @@ question.progress.noMaxScore=$org.olat.modules.iq\:noMaxScore
 question.progress.score=$org.olat.modules.iq\:actualPoints
 question.title=Question {0}
 questions=Number of questions in test
+reopen.assessment=Reopen assessment
+reopen.assessment.title=Reopen closed assessment 
+reopen.assessment.text=This assessment ist already closed. Do you want to reopen it to correct the test?
 reset.data=Reset data
 reset.test.data.acknowledge=I understand that the data will be definitely deleted.
 reset.test.data.text=Do you really want to reset the assessment data of test? The results of <strong>{0} users</strong> will be definitively deleted.
diff --git a/src/main/java/org/olat/ims/qti21/ui/assessment/CorrectionAssessmentItemListController.java b/src/main/java/org/olat/ims/qti21/ui/assessment/CorrectionAssessmentItemListController.java
index 7d1ccbc8117f6d03a6f7456f9238e14fbc3fbcb9..9d137b4834af29b9f5d24606e9700a4e855a8fe5 100644
--- a/src/main/java/org/olat/ims/qti21/ui/assessment/CorrectionAssessmentItemListController.java
+++ b/src/main/java/org/olat/ims/qti21/ui/assessment/CorrectionAssessmentItemListController.java
@@ -469,10 +469,10 @@ public class CorrectionAssessmentItemListController extends FormBasicController
 						itemRef, itemNode);
 				itemCorrection.setItemSession(reloadItemSession);
 
-				boolean readOnly = model.isReadOnly(assessedIdentity);
+				boolean assessmentEntryDone = model.isAssessmentEntryDone(assessedIdentity);
 				identityItemCtrl = new CorrectionIdentityAssessmentItemNavigationController(ureq, getWindowControl(),
 						model.getTestEntry(), model.getResolvedAssessmentTest(), itemCorrection, listEntry,
-						selectedItemSessions, model, null, readOnly, true);
+						selectedItemSessions, model, null, assessmentEntryDone, true);
 				listenTo(identityItemCtrl);
 				updatePreviousNext();
 				
diff --git a/src/main/java/org/olat/ims/qti21/ui/assessment/CorrectionIdentityListController.java b/src/main/java/org/olat/ims/qti21/ui/assessment/CorrectionIdentityListController.java
index c23406eeb58e16c5fcb9e9c7971f1699a2e20e25..65bf5eedc1d085fc2b68892c7ff395864c7d7a4c 100644
--- a/src/main/java/org/olat/ims/qti21/ui/assessment/CorrectionIdentityListController.java
+++ b/src/main/java/org/olat/ims/qti21/ui/assessment/CorrectionIdentityListController.java
@@ -52,11 +52,14 @@ import org.olat.core.id.Identity;
 import org.olat.core.id.Roles;
 import org.olat.core.util.coordinate.CoordinatorManager;
 import org.olat.core.util.coordinate.LockResult;
+import org.olat.course.assessment.AssessmentHelper;
+import org.olat.course.run.userview.UserCourseEnvironment;
 import org.olat.ims.qti21.AssessmentItemSession;
 import org.olat.ims.qti21.AssessmentTestSession;
 import org.olat.ims.qti21.QTI21Module;
 import org.olat.ims.qti21.QTI21Module.CorrectionWorkflow;
 import org.olat.ims.qti21.QTI21Service;
+import org.olat.ims.qti21.ui.ConfirmReopenAssessmentEntryController;
 import org.olat.ims.qti21.ui.assessment.CorrectionIdentityTableModel.IdentityCols;
 import org.olat.ims.qti21.ui.assessment.components.CorrectedFlexiCellRenderer;
 import org.olat.ims.qti21.ui.assessment.components.NotCorrectedFlexiCellRenderer;
@@ -98,6 +101,7 @@ public class CorrectionIdentityListController extends FormBasicController {
 
 	private CloseableModalController cmc;
 	private ConfirmSaveTestsController confirmSaveTestCtrl;
+	private ConfirmReopenAssessmentEntryController reopenForCorrectionCtrl;
 	private CorrectionIdentityAssessmentItemListController identityItemListCtrl;
 
 	private final boolean isAdministrativeUser;
@@ -320,6 +324,14 @@ public class CorrectionIdentityListController extends FormBasicController {
 			}
 			cmc.deactivate();
 			cleanUp();
+		} else if(reopenForCorrectionCtrl == source) {
+			cmc.deactivate();
+			CorrectionIdentityRow row = (CorrectionIdentityRow)reopenForCorrectionCtrl.getUserObject();
+			cleanUp();
+			if(event == Event.CHANGED_EVENT || event == Event.DONE_EVENT) {
+				model.discardAssessmentEntryDone(row.getIdentity());
+				doOpenCorrection(ureq, row);
+			}
 		} else if(cmc == source) {
 			cleanUp();
 		}
@@ -327,8 +339,10 @@ public class CorrectionIdentityListController extends FormBasicController {
 	}
 	
 	private void cleanUp() {
+		removeAsListenerAndDispose(reopenForCorrectionCtrl);
 		removeAsListenerAndDispose(confirmSaveTestCtrl);
 		removeAsListenerAndDispose(cmc);
+		reopenForCorrectionCtrl = null;
 		confirmSaveTestCtrl = null;
 		cmc = null;
 	}
@@ -361,10 +375,36 @@ public class CorrectionIdentityListController extends FormBasicController {
 		}
 		
 		Identity assessedIdentity = row.getIdentity();
-		boolean readOnly = model.isReadOnly(assessedIdentity); 
+		boolean assessmentEntryDone = model.isAssessmentEntryDone(assessedIdentity);
+		if(assessmentEntryDone) {
+			doReopenForCorrection(ureq, row);
+		} else {
+			doOpenCorrection(ureq, row);
+		}
+	}
+	
+	private void doReopenForCorrection(UserRequest ureq, CorrectionIdentityRow row) {
+		if(guardModalController(reopenForCorrectionCtrl)) return;
+
+		UserCourseEnvironment assessedUserCourseEnv = AssessmentHelper
+				.createAndInitUserCourseEnvironment(row.getIdentity(), model.getCourseEnvironment());
+		reopenForCorrectionCtrl = new ConfirmReopenAssessmentEntryController(ureq, getWindowControl(),
+				assessedUserCourseEnv, model.getCourseNode(), row.getCandidateSession());
+		reopenForCorrectionCtrl.setUserObject(row);
+		listenTo(reopenForCorrectionCtrl);
+		
+		cmc = new CloseableModalController(getWindowControl(), "close", reopenForCorrectionCtrl.getInitialComponent(),
+				true, translate("reopen.assessment.title"));
+		cmc.activate();
+		listenTo(cmc);
+	}
+
+	private void doOpenCorrection(UserRequest ureq, CorrectionIdentityRow row) {
+		Identity assessedIdentity = row.getIdentity();
+		boolean assessmentEntryDone = model.isAssessmentEntryDone(assessedIdentity);
 		String title = anonymous ? row.getUser() : userManager.getUserDisplayName(row.getIdentity());
 		identityItemListCtrl = new CorrectionIdentityAssessmentItemListController(ureq, getWindowControl(), stackPanel,
-				model, assessedIdentity, title, readOnly);
+				model, assessedIdentity, title, assessmentEntryDone);
 		listenTo(identityItemListCtrl);
 		
 		String crumb;
diff --git a/src/main/java/org/olat/ims/qti21/ui/assessment/CorrectionOverviewController.java b/src/main/java/org/olat/ims/qti21/ui/assessment/CorrectionOverviewController.java
index ccfa892765a0abce1add22de5a76d5def084d678..206a334d09253e645b7f5138ccf5d7891eec1b92 100644
--- a/src/main/java/org/olat/ims/qti21/ui/assessment/CorrectionOverviewController.java
+++ b/src/main/java/org/olat/ims/qti21/ui/assessment/CorrectionOverviewController.java
@@ -109,7 +109,7 @@ public class CorrectionOverviewController extends BasicController implements Too
 			identifierToRefs.put(itemRef.getIdentifier(), itemRef);
 		}
 
-		List<Identity> assessedIdentities = getAssessedIdentities();
+		List<Identity> assessedIdentities = initializeAssessedIdentities();
 		model = new CorrectionOverviewModel(courseEntry, courseNode, testEntry,
 				resolvedAssessmentTest, manifestBuilder, assessedIdentities);
 		
@@ -134,7 +134,11 @@ public class CorrectionOverviewController extends BasicController implements Too
 		return model.getNumberOfAssessedIdentities();
 	}
 	
-	private List<Identity> getAssessedIdentities() {
+	public List<Identity> getAssessedIdentities() {
+		return model.getAssessedIdentities();
+	}
+	
+	private List<Identity> initializeAssessedIdentities() {
 		Set<Identity> identitiesSet;
 		if(asOptions.getGroup() != null) {
 			List<Identity> identities = businessGroupService.getMembers(asOptions.getGroup(), GroupRoles.participant.name());
diff --git a/src/main/java/org/olat/ims/qti21/ui/assessment/CorrectionOverviewModel.java b/src/main/java/org/olat/ims/qti21/ui/assessment/CorrectionOverviewModel.java
index 4e190d3a5b02182ad075de66f869beca67bfd910..17dedb9adb07dc61529e2f941f6b2905238b8479 100644
--- a/src/main/java/org/olat/ims/qti21/ui/assessment/CorrectionOverviewModel.java
+++ b/src/main/java/org/olat/ims/qti21/ui/assessment/CorrectionOverviewModel.java
@@ -262,7 +262,11 @@ public class CorrectionOverviewModel {
 		return manifestBuilder.getResourceBuilderByHref(itemRef.getHref().toString());
 	}
 	
-	public boolean isReadOnly(Identity assessedIdentity) {
+	public void discardAssessmentEntryDone(Identity assessedIdentity) {
+		assessedIdentitiesDone.remove(assessedIdentity);
+	}
+	
+	public boolean isAssessmentEntryDone(Identity assessedIdentity) {
 		Boolean done = assessedIdentitiesDone.computeIfAbsent(assessedIdentity, identity -> {
 			if(getCourseNode() != null) {
 				UserCourseEnvironment assessedUserCourseEnv = AssessmentHelper
diff --git a/src/main/java/org/olat/ims/qti21/ui/assessment/_i18n/LocalStrings_de.properties b/src/main/java/org/olat/ims/qti21/ui/assessment/_i18n/LocalStrings_de.properties
index 72fc0bb3dcb865a0dc495109ea44f0d23613f317..bcb52f79a9652e6d69a7d0c606bfdd3a71bf8375 100644
--- a/src/main/java/org/olat/ims/qti21/ui/assessment/_i18n/LocalStrings_de.properties
+++ b/src/main/java/org/olat/ims/qti21/ui/assessment/_i18n/LocalStrings_de.properties
@@ -26,6 +26,7 @@ not.responded=Die Frage wurde nicht beantwortet
 overview.tests=\u00DCbersicht und abschliessen
 previous.item=Vorherige Frage
 previous.user=Vorheriger Benutzer
+reopen.assessment.title=$org.olat.ims.qti21.ui\:reopen.assessment.title
 save.back=Speichern und zur \u00DCbersicht
 save.next=Speichern und n\u00E4chste Frage
 save.next.identity=Speichern und n\u00E4chster Teilnehmer
diff --git a/src/main/java/org/olat/ims/qti21/ui/assessment/_i18n/LocalStrings_en.properties b/src/main/java/org/olat/ims/qti21/ui/assessment/_i18n/LocalStrings_en.properties
index 524ddb4f1e4df2d52ab33ed3b2a44941eee606a3..f62c1d79e5a40162f3b470d43be2a4fa0812555d 100644
--- a/src/main/java/org/olat/ims/qti21/ui/assessment/_i18n/LocalStrings_en.properties
+++ b/src/main/java/org/olat/ims/qti21/ui/assessment/_i18n/LocalStrings_en.properties
@@ -26,6 +26,7 @@ override.score=Override score
 overview.tests=Overview and closing
 previous.item=Previous question
 previous.user=Previous user
+reopen.assessment.title=$org.olat.ims.qti21.ui\:reopen.assessment.title
 save.back=Save and back to overview
 save.next=Save and next question
 save.next.identity=Save and next participant