ACCIDENT: maintain every side of the triangle to contain an accident
PEOPLE: the human resource factors involved in safety. Includes such factors as training, behavioural patterns, attitudes and affectations
PRODUCTION: the plant, equipment and substances involved in the workplace systems; application of the PROCEDURES by the PEOPLE (Think: "Hardware")
PROCEDURE: the Health and Safety systems designed to enable the PEOPLE factor to interact with the PRODUCTION factor without an ACCIDENT (Think: "Software")