Index: lams_common/src/java/org/lamsfoundation/lams/qb/service/QbService.java
===================================================================
diff -u -rc393d2b92ec8c8bdc5916ac5f53e0adcaeee0ce3 -r7faeaea7b800b429b1bce93191090f0851e8f9f5
--- lams_common/src/java/org/lamsfoundation/lams/qb/service/QbService.java	(.../QbService.java)	(revision c393d2b92ec8c8bdc5916ac5f53e0adcaeee0ce3)
+++ lams_common/src/java/org/lamsfoundation/lams/qb/service/QbService.java	(.../QbService.java)	(revision 7faeaea7b800b429b1bce93191090f0851e8f9f5)
@@ -20,6 +20,7 @@
 
 import javax.servlet.http.HttpSession;
 
+import org.apache.log4j.Logger;
 import org.lamsfoundation.lams.gradebook.GradebookUserLesson;
 import org.lamsfoundation.lams.gradebook.service.IGradebookService;
 import org.lamsfoundation.lams.learningdesign.Activity;
@@ -54,6 +55,9 @@
 import com.fasterxml.jackson.databind.node.ObjectNode;
 
 public class QbService implements IQbService {
+
+    protected Logger log = Logger.getLogger(QbService.class);
+
     private IQbDAO qbDAO;
 
     private IGradebookService gradebookService;
@@ -375,6 +379,11 @@
 	collection.setName(name);
 	collection.setUserId(userId);
 	qbDAO.insert(collection);
+
+	if (log.isDebugEnabled()) {
+	    log.debug("User " + userId + " created a new QB collection: " + name);
+	}
+
 	return collection;
     }
 
@@ -387,7 +396,13 @@
 	if (collection.getUserId() == null || collection.isPersonal()) {
 	    throw new InvalidParameterException("Attempt to remove a private or the public question bank collection");
 	}
+
+	if (log.isDebugEnabled()) {
+	    log.debug("Removed collection with UID: " + collectionUid + " and name: " + collection.getName());
+	}
+
 	qbDAO.delete(collection);
+
     }
 
     @Override
@@ -397,6 +412,11 @@
 	    // if the question is used in a Learning Design, do not allow to remove it
 	    return false;
 	}
+
+	if (log.isDebugEnabled()) {
+	    log.debug("Removed QB question with UID: " + qbQuestionUid);
+	}
+
 	qbDAO.deleteById(QbQuestion.class, qbQuestionUid);
 	return true;
     }
@@ -411,6 +431,11 @@
 	Map<String, Object> properties = new HashMap<>();
 	properties.put("questionId", qbQuestionId);
 	qbDAO.deleteByProperties(QbQuestion.class, properties);
+
+	if (log.isDebugEnabled()) {
+	    log.debug("Removed QB questions with question ID: " + qbQuestionId);
+	}
+
 	return true;
     }
 
@@ -476,6 +501,11 @@
 	    qbDAO.insert(newQuestion);
 	}
 	qbDAO.addCollectionQuestion(collectionUid, addQbQuestionId);
+
+	if (log.isDebugEnabled()) {
+	    log.debug("Added QB questions with question ID: " + qbQuestionId + " to collection with UID: "
+		    + collectionUid);
+	}
     }
 
     @Override
@@ -504,6 +534,12 @@
 	    return removeQuestionByQuestionId(qbQuestionId);
 	}
 	qbDAO.removeCollectionQuestion(collectionUid, qbQuestionId);
+
+	if (log.isDebugEnabled()) {
+	    log.debug("Removed QB questions with question ID: " + qbQuestionId + " from collection with UID: "
+		    + collectionUid);
+	}
+
 	return true;
     }
 
@@ -643,6 +679,10 @@
 		qbDAO.insert(qbOption);
 	    }
 	}
+
+	if (log.isDebugEnabled()) {
+	    log.debug("Created a new QB question with UID: " + qbQuestion.getUid());
+	}
     }
 
     /**