Big brother - a fully automated control system for the DELPHI experiment

The integrated control system of the DELPHI experiment is described. It allows the data to be taken in an almost automatic fashion. This is achieved by computer monitoring of the states of the LEP machine, the DELPHI subdetectors (SC) and the Data Acquisition System (DAS). Depending on these states, computer initiated actions are then taken. It has been designed using {open_quote}State Manager{close_quote} concept already used for local and central controls of DAS and SC.