# Navigate in a Task Model

The task hierarchy window on the left allows to access directly to a task, a link or a boolean connector.

When the user clicks on a link or on a boolean connector, the associated window appears at the front and becomes the current window.

When the user clicks on a task.

If the task is elementary (no decomposition), the window that contains the task appears at the front and becomes the current window.

If the task is composite (with decomposition), the window that contains the decomposition appears at the front and becomes the current window.