NATO AOP-42 PDF

INTRODUCTION

The design safety assessment of safety critical systems has traditionally been carried out by comparing an illustrated description of the operation of the device with the specified design standard, feature by feature and paragraph by paragraph. This method has worked well, however, it cannot be expected to remain reliable as the design of such systems and the related standards are becoming more complex. This increases the probability that some safety critical aspect of a design will be overlooked.

Tools, such as Fault Tree Analysis (FTA), help the study of operating faults in systems, but there is no tool that can be used, at the same time, to help the study of system behaviour in the absence of faults. The approach described in this AOP attempts to do this.

AIM

The Aim of this AOP is to describe a procedure that may be used for the Integrated Design Analysis (IDA) of safety critical systems.