The PLC programming framework for custom assembly lines mirrors the company org chart perfectly. You can even apply organizational management principles to write PLC control programs.
Manual/Auto Programs = Command Chain
Manual/auto programs are like corporate directives: the line sends start/stop commands to each station; each station commands its valves and motors based on local conditions; actuators simply execute station commands.
Alarm Aggregation = Feedback Chain
Valve/axis alarms are like employee feedback: reported to the station first, then escalated to the line stop program. The stop program only cares about alarm severity, not which specific valve triggered it.
Master this framework and you can manage both equipment and organizations!