In the Systemic model it is assumed that accidents result from unexpected combinations (resonance) of normal performance variability. Failure and success stem from the same source. We change the goal from “avoiding that anything goes wrong” to “ensuring that everything goes right” (TEM, NOSS, LOSA, etc.)
From linear towards systemic:
- It takes teamwork (humans, organizations, technology and society) to succeed as well as it takes teamwork to fail. Air traffic control is not about heroes and anti- heroes
- Safety reporting becomes less relevant to enhance safety
- More emphasis on understanding processes and predicting what goes right
It is time to give systemic safety a more prominent role in ATM, without forgetting where we came from.
IFATCA Policy is:IFATCA shall adapt to a systemic conception of safety and this shall be embedded in a provisional policy. This means not using new iterations of the linear approach. However, it is recognized that there will be a need for the use of existing linear approach to safety. |
| See: WP 165 – Bali 2013 |
Last Update: August 11, 2022
November 5, 2019 679 Jean-Francois Lepage WC