The building block of the planning is the work order: one step in a file.
One work order per stepSurvey, delivery, installation, maintenance: each step is a work order on the file, with a type, a colour, hours, and a planned start and end.
Team and peopleYou assign a team; the members of that team are added to the work order. You can also fix an individual in place.
To be plannedWork orders without a date sit in a separate "To be planned" list. You drag them into the calendar.
Confirmed to the customerA date confirmed to the customer gets a padlock. Work orders that have started are locked.
ExecutionStarted, stopped, finished: the actual start and stop sit next to the planned ones.