Defining safety functions and safety barriers from fault and event trees analysis of major industrial hazards

A global view on ARAMIS, a risk assessment methodology for industries in the framework of the SEVESO II directive

“…Then, the method helps the user to define the safety barriers [10] by promoting the concept of safety function and by providing different possible strategies of barrier implementation for a given safety function.…”

“…Then, MIMAH provides the user with a set of generic fault trees, which are based on the most frequently observed causes [10]. From these generic fault trees, the user can build specific fault trees that take into account the specificity of the plant: types of process used, presence of equipment, etc.…”

ARAMIS project: A comprehensive methodology for the identification of reference accident scenarios in process industries

“…They can involve the environment which can be corrosive and/or the material constitutive of the equipment which can present a poor resistance to corrosion. In the last level it was tried to propose very generic causes, called undesirable events making the link with human behaviour and organisational deficiencies which are potential causes for a very large variety of events [4].…”

Organizing learning processes on risks by using the bow-tie representation

“…As a matter of fact, the Aramis method is designed specifically for anticipating incidents and accident scenarios. The identification of major accident scenarios, the construction of the bow-ties and the calculation of the three indexes (severity, vulnerability and management efficiency) contribute to the preparation of the system to face risks [1][2][3][4]. The exhaustiveness of Aramis bow-ties (four levels of faults and events) allows the identification of weaknesses and strengths of the industrial system at a given time.…”

“…We aim in fact to describe how bow-ties constructed, thanks to the Aramis method [1][2][3][4], can contribute to organizational learning for safety. We build our article around the presentation of the applied use of bow-ties in a Sanofi-Aventis production plant [5] and also on research work undertaken by the Ecole des Mines de Paris (EMP) on organizational learning and experience feedback [6][7][8].…”