system
rotorhead
this old thread was focussed on diffrent issue which was i think regarding some pilots medical issue(i dont know if he still flying in there)
system comes in to picture when there are more than one person working in a setup.
its like when i had less than 10 workers ,no system was required.(can attend every body Personally )
but as the organisation expands there was a need to establish system.
or you can say general guidelines