A plan lifecycle is composed of 4 possible statuses:

Planned

Plan is being prepared.
Executors (if plan is published) can view the plan but no task can be started.
Attendance is accessible.
Manager can start the plan manually or it will change the status after planned start time to Started.

Started

Plan is running.
Executors can access the plan and start Tasks in Ready status.
Manager can overview the plan, edit if on-fly editing is configured and override tasks if necessary.

Executed

Plan is finished.
Executors and Manager can view the plan.
No task can be edited or status changed.
Audit Log is accessible.
Plan can be exported to template.

Failed

Plan was finished manually by Manager by Fail function.
Executors and Manager can view the plan.
No task can be edited or status changed.
Audit Log is accessible showing the plan failure.