Index: trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/treeifc/IOptionalInstance.java
===================================================================
--- trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/treeifc/IOptionalInstance.java	(revision 1410)
+++ trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/treeifc/IOptionalInstance.java	(revision 1413)
@@ -18,5 +18,5 @@
  * <p>
  * the instance of an {@link IOptional}. The instance may have a child being an
- * instance of the task marked by the iteration of which this is an instance. If this instance
+ * instance of the task marked by the optional of which this is an instance. If this instance
  * does not have a child, the optional child task was not executed.
  * </p>
Index: trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/treeifc/ISelectionInstance.java
===================================================================
--- trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/treeifc/ISelectionInstance.java	(revision 1410)
+++ trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/treeifc/ISelectionInstance.java	(revision 1413)
@@ -17,5 +17,6 @@
 /**
  * <p>
- * TODO comment
+ * the instance of an {@link ISelection}. The instance has a child being an instance of the child
+ * task of the selection that was selected for execution.
  * </p>
  * 
Index: trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/treeifc/ISequenceInstance.java
===================================================================
--- trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/treeifc/ISequenceInstance.java	(revision 1410)
+++ trunk/autoquest-core-tasktrees/src/main/java/de/ugoe/cs/autoquest/tasktrees/treeifc/ISequenceInstance.java	(revision 1413)
@@ -17,5 +17,6 @@
 /**
  * <p>
- * TODO comment
+ * the instance of an {@link ISequence}. The instance has the same number of children as the
+ * sequence it represents.
  * </p>
  * 
