Tree structure
Application GUI has Microsoft Explorer style with tree in the left pane and tabs containing properties of a selected tree node in the right pane. Tree hierarchy has typical for Agile project structure: Project->Sprint (or Iteration for XP project)->User Story->Task.
A Task can either be a development or testing task. For better visibility tasks of different types are marked in tree by different icons. A Task can also be a Change Request which is marked in tree by dimmed icon of correspondent type.
