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= Analysis =

== Overview ==
 This task is about the base timelines support that is in the model.   
== Task requirements ==
 * Timelines should somehow be provided as part of the model.
  * consider that a timelines manager will be present at some time in the future.
  * consider that timelines have different channels.
  * consider that timelines are constructed of primitives:
   * entries.
   * channels with entries.
  * provide a base class hierarchy representing the timelines.
   * it should define a timelines general structure.
   * it should define a way to control timelines generally - start, stop, pause etc. (We may have a !TimelinesManager included in the TIMELINE_MANAGEMENT tasks to do these.)
   * it should provide a vision about timelines persistence.
 * Provide a design diagrams backed up with explanations about the general concept.
 * '''Notes:'''
  * The task is tightly connected with other tasks about timelines which will occur at iterations 4, 5 and generally 6.
  * Considering this task's effort and that other tasks that are connected will appear later:
   * Come up with general design in the model about timelines.
    * It may be slightly changed at the time other tasks appear.
    * It should be finished at the time all R0s of other tasks are completed.
 
== Task result == 
 * wiki page.

== Implementation idea ==
 * see other tasks in the task index that are about timelines.
 * examine Sophie 1.0 timelines that are managed through the bottom flap. (see http://sophieproject.org/download/, http://sophieproject.org/tutorials, http://sophieproject.org/node/235 to get some ideas about the design of timelines.)
 * create the wiki page and fill in the concepts and design.

== Related ==
 * [wiki:INTERACTIVITY_COMMONS_R0]
 * the task is related to TIMELINES with all their sub-tasks. (see http://sophie2.org/trac/wiki/TASK_INDEX for more information).
 * a link to a particular task cannot be provided since none of the above are started yet (except for INTERACTIVITY_COMMONS_R0).

== How to demo ==
 * show the wiki page and explain the stuff there.

= Design =

= Implementation =
^(Implementation results should be described and linked here (from the wiki or the repository))^

= Testing =

= Comments =
^(Write comments for this or later revisions here.)