We have done a system map.
It basically just helps you get to know your system.
you write down your insiders names, ages, and anything that is desired to be known.
you can even make an announcement inside that this is what needs to be done, and
when people come out they can write their own part (that's how we did it)...
that way you may learn things about your insiders that you didn't know,
because it is coming from them. Hope that helps! Good luck!