system key features:
limit the potentially harmful effects of the actions of the person
doing the work by specifying safety precautions and setting limits
to the duration and extent of the work.
those responsible for overall site safety to be aware of the various
hazardous activities and to take a systematic overview which identifies
interactions and allows priorities to be set for conflicting work
formal and careful attention to safe systems of working, by requiring
the signature of specified individuals who must confirm that all
hazards have been identified and effective precautions taken.
those responsible for overall site safety to plan the carrying
out of tasks so that minimal inconvenience and interference is
caused to other tasks or production.