anchor.diff:  Moreover, additional filtering can be applied to the queries to provide more advanced options when searching for user tasks and processes.
   endif::BPMS[]
   
  -[[_advanced_queries]]
  +[#advanced_queries]
   == Advanced Queries with QueryService
   
   `QueryService` provides advanced search capabilities based on JBoss BPM Suite Dashbuilder datasets. You can retrieve data from the underlying data store by means of, for example, JPA entity tables, or custom database tables.
  
positive.code: [[_chap_human_tasks_management]]
  = Human Tasks Management
  
  [[_human_tasks]]
  == Human Tasks
  
  Human Tasks are tasks within a process that must be carried out by human actors. BRMS Business Process Management supports a human task node inside processes for modeling the interaction with human actors. The human task node allows process designers to define the properties related to the task that the human actor needs to execute; for example, the type of task, the actor, and the data associated with the task can be defined by the human task node. A back-end human task service manages the lifecycle of the tasks at runtime. The implementation of the human task service is based on the WS-HumanTask specification, and the implementation is fully pluggable; this means users can integrate their own human task solution if necessary. Human tasks nodes must be included inside the process model and the end users must interact with a human task client to request their tasks, claim and complete tasks.
  
  [[_using_user_tasks_in_processes]]
  == Using User Tasks in Processes
  
  Red Hat JBoss BPM Suite supports the use of human tasks inside processes using a special User Task node defined by the BPMN2 Specification. A User Task node represents an atomic task that is executed by a human actor.
  
negative.code: ----
  
  
  [#task_escalation]
  == Task Escalation
  
  It is possible to implement Task Escalation for your Human Tasks to set up a timer within which certain task must be finished. To learn more about Task Escalation, see {URL_USER_GUIDE}#escalation[A.3.2. Escalation] from {USER_GUIDE}. Red Hat JBoss BPM Suite also supports custom implementation of the Email Notification Events in the Task Escalation service, which requires you to do the following:
  