Page History

...

The system is organized at the top level as 'Projects' which consist of 'phases' and phases consists out of 'tasks'.  This structure is mandatory: mo no tasks without a related phase and no phase without a related project. The information is maintained at the task level only like estimated and actual hours,dates and the status. The information at the phase and project level is derived from the information at the task level: if all tasks are completed, the project is completed.

...