diff --git a/config/alfresco/messages/bpm-messages.properties b/config/alfresco/messages/bpm-messages.properties
index ddfee4d3d2..8f398a14ae 100644
--- a/config/alfresco/messages/bpm-messages.properties
+++ b/config/alfresco/messages/bpm-messages.properties
@@ -25,7 +25,7 @@ bpm_businessprocessmodel.property.bpm_priority.description=Priority
 bpm_businessprocessmodel.property.bpm_percentComplete.title=Percent Complete
 bpm_businessprocessmodel.property.bpm_percentComplete.description=Percent Complete
 bpm_businessprocessmodel.association.bpm_pooledActors.title=Pooled Users
-bpm_businessprocessmodel.association.bpm_pooledActors.title=The users who may take ownership of the task
+bpm_businessprocessmodel.association.bpm_pooledActors.title=Pool
 
 # Workflow Task
 bpm_businessprocessmodel.type.bpm_workflowTask.title=Worflow Task
diff --git a/config/alfresco/model/bpmModel.xml b/config/alfresco/model/bpmModel.xml
index 98e30814de..2f212feb86 100644
--- a/config/alfresco/model/bpmModel.xml
+++ b/config/alfresco/model/bpmModel.xml
@@ -10,6 +10,8 @@
     <imports>
         <!-- Import Alfresco Dictionary Definitions -->
         <import uri="http://www.alfresco.org/model/dictionary/1.0" prefix="d" />
+        <!-- Import Alfresco System Definitions -->
+        <import uri="http://www.alfresco.org/model/system/1.0" prefix="sys" />
         <!-- Import Alfresco Content Domain Model Definitions -->
         <import uri="http://www.alfresco.org/model/content/1.0" prefix="cm" />
         <!-- Import User Model Definitions -->
@@ -146,7 +148,8 @@
                         <many>false</many>
                     </source>
                     <target>
-                        <class>cm:person</class>
+                        <!-- For now, this may consists of cm:person or usr:authorityContainer -->
+                        <class>sys:base</class>
                         <mandatory>false</mandatory>
                         <many>true</many>
                     </target>
diff --git a/config/alfresco/workflow-context.xml b/config/alfresco/workflow-context.xml
index d6bbad2982..5daf205a59 100644
--- a/config/alfresco/workflow-context.xml
+++ b/config/alfresco/workflow-context.xml
@@ -15,6 +15,7 @@
    </bean>
    
    <bean id="workflowServiceImpl" class="org.alfresco.repo.workflow.WorkflowServiceImpl">
+      <property name="authorityService" ref="authorityService"/>
       <property name="BPMEngineRegistry" ref="bpm_engineRegistry"/>
       <property name="workflowPackageComponent" ref="workflowPackageImpl"/>
    </bean>
@@ -89,7 +90,6 @@
       <property name="namespaceService" ref="namespaceService"/>
       <property name="nodeService" ref="nodeService"/>
       <property name="personService" ref="personService"/>
-      <property name="authorityService" ref="authorityService"/>
       <property name="authorityDAO" ref="authorityDAO"/>
       <property name="serviceRegistry" ref="ServiceRegistry"/>
       <property name="companyHomeStore"><value>${spaces.store}</value></property>
diff --git a/source/java/org/alfresco/repo/action/ActionServiceImpl.java b/source/java/org/alfresco/repo/action/ActionServiceImpl.java
index e81db779ec..bb4c25e980 100644
--- a/source/java/org/alfresco/repo/action/ActionServiceImpl.java
+++ b/source/java/org/alfresco/repo/action/ActionServiceImpl.java
@@ -221,7 +221,15 @@ public class ActionServiceImpl implements ActionService, RuntimeActionService, A
 	 */
 	public ActionDefinition getActionDefinition(String name)
 	{
-		return this.actionDefinitions.get(name);
+	    // get direct access to action definition (i.e. ignoring public flag of executer)
+        ActionDefinition definition = null;
+        Object bean = this.applicationContext.getBean(name);
+        if (bean != null && bean instanceof ActionExecuter)
+        {
+            ActionExecuter executer = (ActionExecuter)bean;
+            definition = executer.getActionDefinition();
+        }
+        return definition;
 	}
 
 	/**
diff --git a/source/java/org/alfresco/repo/workflow/WorkflowServiceImpl.java b/source/java/org/alfresco/repo/workflow/WorkflowServiceImpl.java
index 4b9f38f747..d05902f370 100644
--- a/source/java/org/alfresco/repo/workflow/WorkflowServiceImpl.java
+++ b/source/java/org/alfresco/repo/workflow/WorkflowServiceImpl.java
@@ -22,8 +22,11 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 
 import org.alfresco.service.cmr.repository.NodeRef;
+import org.alfresco.service.cmr.security.AuthorityService;
+import org.alfresco.service.cmr.security.AuthorityType;
 import org.alfresco.service.cmr.workflow.WorkflowDefinition;
 import org.alfresco.service.cmr.workflow.WorkflowDeployment;
 import org.alfresco.service.cmr.workflow.WorkflowException;
@@ -49,9 +52,20 @@ public class WorkflowServiceImpl implements WorkflowService
     private static Log logger = LogFactory.getLog("org.alfresco.repo.workflow");
 
     // Dependent services
+    private AuthorityService authorityService;
     private BPMEngineRegistry registry;
     private WorkflowPackageComponent workflowPackageComponent;
+
     
+    /**
+     * Sets the Authority Service
+     * 
+     * @param authorityService
+     */
+    public void setAuthorityService(AuthorityService authorityService)
+    {
+        this.authorityService = authorityService;
+    }
 
     /**
      * Sets the BPM Engine Registry
@@ -288,10 +302,13 @@ public class WorkflowServiceImpl implements WorkflowService
      */
     public List<WorkflowTask> getPooledTasks(String authority)
     {
-        // TODO: Expand authorities to include associated groups (and parent groups)
+        // Expand authorities to include associated groups (and parent groups)
         List<String> authorities = new ArrayList<String>();
         authorities.add(authority);
-        
+        Set<String> parents = authorityService.getContainingAuthorities(AuthorityType.GROUP, authority, false);
+        authorities.addAll(parents);
+
+        // Retrieve pooled tasks for authorities (from each of the registered task components)
         List<WorkflowTask> tasks = new ArrayList<WorkflowTask>(10);
         String[] ids = registry.getTaskComponents();
         for (String id: ids)
diff --git a/source/java/org/alfresco/repo/workflow/jbpm/JBPMEngine.java b/source/java/org/alfresco/repo/workflow/jbpm/JBPMEngine.java
index 215e0eaa6d..e97b7f7467 100644
--- a/source/java/org/alfresco/repo/workflow/jbpm/JBPMEngine.java
+++ b/source/java/org/alfresco/repo/workflow/jbpm/JBPMEngine.java
@@ -23,7 +23,6 @@ import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Date;
 import java.util.HashMap;
-import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -51,7 +50,6 @@ import org.alfresco.service.cmr.repository.NodeRef;
 import org.alfresco.service.cmr.repository.NodeService;
 import org.alfresco.service.cmr.repository.StoreRef;
 import org.alfresco.service.cmr.repository.datatype.DefaultTypeConverter;
-import org.alfresco.service.cmr.security.AuthorityService;
 import org.alfresco.service.cmr.security.AuthorityType;
 import org.alfresco.service.cmr.security.PersonService;
 import org.alfresco.service.cmr.workflow.WorkflowDefinition;
@@ -112,7 +110,6 @@ public class JBPMEngine extends BPMEngine
     protected NodeService nodeService;
     protected ServiceRegistry serviceRegistry;
     protected PersonService personService;
-    protected AuthorityService authorityService;
     protected AuthorityDAO authorityDAO;
     protected JbpmTemplate jbpmTemplate;
     
@@ -188,16 +185,6 @@ public class JBPMEngine extends BPMEngine
     {
         this.personService = personService;
     }
-    
-    /**
-     * Sets the Authority Service
-     * 
-     * @param authorityService
-     */
-    public void setAuthorityService(AuthorityService authorityService)
-    {
-        this.authorityService = authorityService;
-    }
 
     /**
      * Sets the Authority DAO
@@ -857,17 +844,9 @@ public class JBPMEngine extends BPMEngine
             {
                 public List<WorkflowTask> doInJbpm(JbpmContext context)
                 {
-                    // flatten authorities to include all parent authorities
-                    Set<String> flattenedAuthorities = new HashSet<String>();
-                    for (String authority : authorities)
-                    {
-                        Set<String> parents = authorityService.getContainingAuthorities(AuthorityType.GROUP, authority, false);
-                        flattenedAuthorities.addAll(parents);
-                    }
-                    
                     // retrieve pooled tasks for all flattened authorities
                     TaskMgmtSession taskSession = context.getTaskMgmtSession();
-                    List<TaskInstance> tasks = taskSession.findPooledTaskInstances(new ArrayList(flattenedAuthorities));
+                    List<TaskInstance> tasks = taskSession.findPooledTaskInstances(authorities);
                     List<WorkflowTask> workflowTasks = new ArrayList<WorkflowTask>(tasks.size());
                     for (TaskInstance task : tasks)
                     {
@@ -1406,7 +1385,16 @@ public class JBPMEngine extends BPMEngine
             List<NodeRef> pooledNodeRefs = new ArrayList<NodeRef>(pooledActors.size());
             for (PooledActor pooledActor : (Set<PooledActor>)pooledActors)
             {
-                NodeRef pooledNodeRef = mapNameToAuthority(pooledActor.getActorId());
+                NodeRef pooledNodeRef = null;
+                String pooledActorId = pooledActor.getActorId();
+                if (AuthorityType.getAuthorityType(pooledActorId) == AuthorityType.GROUP)
+                {
+                    pooledNodeRef = mapNameToAuthority(pooledActorId);
+                }
+                else
+                {
+                    pooledNodeRef = mapNameToPerson(pooledActorId);
+                }
                 if (pooledNodeRef != null)
                 {
                     pooledNodeRefs.add(pooledNodeRef);
@@ -1529,12 +1517,20 @@ public class JBPMEngine extends BPMEngine
                             int i = 0;
                             for (JBPMNode actor : actors)
                             {
-                                pooledActors[i++] = actor.getName();
+                                if (actor.getType().equals(ContentModel.TYPE_AUTHORITY_CONTAINER))
+                                {
+                                    pooledActors[i++] = (String)actor.getProperties().get(ContentModel.PROP_AUTHORITY_NAME);
+                                }
+                                else
+                                {
+                                    pooledActors[i++] = actor.getName();
+                                }
                             }
                         }
                         else if (value instanceof JBPMNode)
                         {
-                            pooledActors = new String[] {((JBPMNode)value).getName()};
+                            JBPMNode node = (JBPMNode)value;
+                            pooledActors = new String[] {(node.getType().equals(ContentModel.TYPE_AUTHORITY_CONTAINER)) ? (String)node.getProperties().get(ContentModel.PROP_AUTHORITY_NAME) : node.getName()};
                         }
                         else
                         {
diff --git a/source/java/org/alfresco/repo/workflow/jbpm/test_groups.xml b/source/java/org/alfresco/repo/workflow/jbpm/test_groups.xml
index 5456b9e080..5f35f346b6 100644
--- a/source/java/org/alfresco/repo/workflow/jbpm/test_groups.xml
+++ b/source/java/org/alfresco/repo/workflow/jbpm/test_groups.xml
@@ -18,7 +18,8 @@
 
     <task-node name="review">
         <task name="wf:reviewTask" swimlane="reviewer"/>
-        <transition name="" to="end" />
+        <transition name="reject" to="end" />
+        <transition name="approve" to="end" />
     </task-node>
 
     <node name="parallel">