Thanks to everyone who has replied. The reason I asked the question is that I have an advanced, fully customisable scheduling system and I am investigating the possible uses . places like call centres are one application (lots of people used, high costs of getting it wrong) and I suspected aircraft maintenance could be another (not flying=spending lots of money and that is before we even think of people costs.). Its kind of - "you dream up the scenario, and it can be bolted onto what ever system anyone has". I have heard enough to make me think this idea may have some mileage. Now, I need to think up scenario's
Thanks again