Index: /trunk/quest-core-tasktrees/src/main/java/de/ugoe/cs/quest/tasktrees/manager/TaskTreeManager.java
===================================================================
--- /trunk/quest-core-tasktrees/src/main/java/de/ugoe/cs/quest/tasktrees/manager/TaskTreeManager.java	(revision 726)
+++ /trunk/quest-core-tasktrees/src/main/java/de/ugoe/cs/quest/tasktrees/manager/TaskTreeManager.java	(revision 727)
@@ -1,4 +1,6 @@
 package de.ugoe.cs.quest.tasktrees.manager;
 
+import java.util.Collection;
+import java.util.List;
 import java.util.logging.Level;
 
@@ -43,4 +45,23 @@
     public TaskTreeManager() {
         rootSequence = taskTreeNodeFactory.createNewSequence();
+    }
+
+    /**
+     * <p>
+     * TODO: comment
+     * </p>
+     *
+     * @param sequences
+     * @return
+     */
+    public synchronized ITaskTree createTaskTree(Collection<List<Event>> sequences) {
+        
+        for (List<Event> sequence : sequences) {
+            for (Event event : sequence) {
+                handleNewEvent(event);
+            }
+        }
+        
+        return getTaskTree();
     }
 
Index: /trunk/quest-ui-core/pom.xml
===================================================================
--- /trunk/quest-ui-core/pom.xml	(revision 726)
+++ /trunk/quest-ui-core/pom.xml	(revision 727)
@@ -49,4 +49,9 @@
     </dependency>
     <dependency>
+      <groupId>de.ugoe.cs.quest</groupId>
+      <artifactId>quest-core-tasktrees</artifactId>
+      <version>0.0.1-SNAPSHOT</version>
+    </dependency>
+    <dependency>
       <groupId>net.sf.jung</groupId>
       <artifactId>jung-visualization</artifactId>
Index: /trunk/quest-ui-core/src/main/java/de/ugoe/cs/quest/ui/commands/CMDgenerateTaskTree.java
===================================================================
--- /trunk/quest-ui-core/src/main/java/de/ugoe/cs/quest/ui/commands/CMDgenerateTaskTree.java	(revision 727)
+++ /trunk/quest-ui-core/src/main/java/de/ugoe/cs/quest/ui/commands/CMDgenerateTaskTree.java	(revision 727)
@@ -0,0 +1,100 @@
+
+package de.ugoe.cs.quest.ui.commands;
+
+import java.security.InvalidParameterException;
+import java.util.Collection;
+import java.util.List;
+
+import de.ugoe.cs.quest.CommandHelpers;
+import de.ugoe.cs.quest.SequenceInstanceOf;
+import de.ugoe.cs.quest.eventcore.Event;
+import de.ugoe.cs.quest.tasktrees.manager.TaskTreeManager;
+import de.ugoe.cs.quest.tasktrees.treeifc.ITaskTree;
+import de.ugoe.cs.util.console.Command;
+import de.ugoe.cs.util.console.GlobalDataContainer;
+
+/**
+ * <p>
+ * Command to sort the key interactions in a sequence of events. An example, the sequence
+ * to write the upper case D
+ * <ul>
+ *   <li>press shift key</li>
+ *   <li>press D key</li>
+ *   <li>release shift key</li>
+ *   <li>release D key</li>
+ * </ul>
+ * 
+ * is transformed to the sequence
+ * 
+ * <ul>
+ *   <li>press shift key</li>
+ *   <li>press D key</li>
+ *   <li>release D key</li>
+ *   <li>release shift key</li>
+ * </ul>
+ * 
+ * in which the first pressed key (shift in this case) is always released last. The same is done
+ * for the alt and the ctrl keys.
+ * 
+ * </p>
+ * 
+ * @author Patrick Harms
+ * @version 1.0
+ */
+public class CMDgenerateTaskTree implements Command {
+
+    /*
+     * (non-Javadoc)
+     * 
+     * @see de.ugoe.cs.util.console.Command#help()
+     */
+    @Override
+    public String help() {
+        return "generateTaskTree <sequences> {<tasktree>}";
+    }
+
+    /*
+     * (non-Javadoc)
+     * 
+     * @see de.ugoe.cs.util.console.Command#run(java.util.List)
+     */
+    @SuppressWarnings("unchecked")
+    @Override
+    public void run(List<Object> parameters) {
+        String sequencesName;
+        String tasktreeName;
+        try {
+            sequencesName = (String) parameters.get(0);
+            if (parameters.size() > 1) {
+                tasktreeName = (String) parameters.get(1);
+            }
+            else {
+                tasktreeName = "tasktree";
+            }
+        }
+        catch (Exception e) {
+            throw new InvalidParameterException("must provide a sequences name");
+        }
+
+        Collection<List<Event>> sequences = null;
+        Object dataObject = GlobalDataContainer.getInstance().getData(sequencesName);
+        if (dataObject == null) {
+            CommandHelpers.objectNotFoundMessage(sequencesName);
+            return;
+        }
+        if (!SequenceInstanceOf.isCollectionOfSequences(dataObject)) {
+            CommandHelpers.objectNotType(sequencesName, "Collection<List<Event<?>>>");
+            return;
+        }
+
+        sequences = (Collection<List<Event>>) dataObject;
+        
+        ITaskTree taskTree = new TaskTreeManager().createTaskTree(sequences);
+        
+        if (GlobalDataContainer.getInstance().addData(tasktreeName, taskTree)) {
+            CommandHelpers.dataOverwritten(sequencesName);
+        }
+        
+    }
+
+}